jQuery(function(){
	//initValidationContact();
	initPlugins();
	initPopups();
	initPopup();
	if(!window.vscrollLoaded) VSA_initScrollbars();
	var st = setInterval(function(){
		if(window.vscrollLoaded) {
			clearInterval(st);
			initTabs();
		}
	}, 100);
	initCycleGalleryV();
	ieHover('ul.main-nav > li', 'ul.switcher-list > li', 'hover');
	initValidation();
	initValueInputs();
});

function initValueInputs(){
	var forms = jQuery('.contacts-form form');
	forms.each(function(){
		var form = jQuery(this);
		form.submit(function(){
			setTimeout(function(){
				var spans = form.find('span:visible');
				if(!spans.length){
					var inputs = jQuery('input');
					inputs.each(function(){
						var input = jQuery(this);
						var title = input.attr('title');
						if(title){
							input.val(title);
						}
					});
					var selects = jQuery('select');
					selects.each(function(){
						var select = jQuery(this);
						var options = select.find('option');
						options.get(0).selected = true;
					});
				}
			},1000);
		});
	});
}

// jquery ie6 hover pack
function ieHover(obj, hoverClass){
	var elements = obj;
	var hoverClass = hoverClass;
	if(jQuery.browser.msie && parseInt(jQuery.browser.version) == 6){
		jQuery(elements).hover(function(){
			jQuery(this).addClass(hoverClass);
		}, function(){
			jQuery(this).removeClass(hoverClass);
		});
	}
}

function initValidation(){
	var _errorClass = 'incorrect';
	var _regEmail = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
	var _regPhone = /^[0-9\-\ \()]+$/;
	var _regNum = /^[0-9]+$/;

	jQuery('form.validate').each(function(){
		var _form = jQuery(this);
		function checkFields() {
			var _flag = false;
			_form.find('.'+_errorClass).removeClass(_errorClass);
			// fields validation
			_form.find('input.required-email').each(function(){
				if(!_regEmail.test(jQuery(this).val())) addError(jQuery(this));
			});
			_form.find('input.required-phone').each(function(){
				if(!_regPhone.test(jQuery(this).val())) addError(jQuery(this));
			});
			_form.find('input.required-num').each(function(){
				if(!_regNum.test(jQuery(this).val())) addError(jQuery(this));
			});
			_form.find('input.required, textarea.required').each(function(){
				if(!jQuery(this).val().length || jQuery(this).val() == jQuery(this).attr('alt')) addError(jQuery(this));
			});

			// error class adding
			function addError(_obj) {
				_obj.addClass(_errorClass);
				_flag=true;
			}
			return _flag;
		}

		// catch form submit event
		_form.submit(function(){
			if(checkFields()) {
				return false;
			}
		});
	});
}

// form validation function
function initValidationContact() {
	jQuery('input:text').each(function() {
		this.defaultValue = this.value;
	})

	var errorClass = 'incorrect';
	var successClass = 'success';
	var regEmail = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
	var regPhone = /^[0-9]+$/;

	jQuery('form.validate-contact').each(function(){
		var form = jQuery(this);
		var successFlag = true;
		var inputs = form.find('input:text, textarea, select');
		var flag = false;

		// form validation function
		function validateForm() {
			form.find('.err').hide();
			successFlag = true;
			inputs.each(checkField)
			return successFlag;
		}

		var elements = form.find('input');
		elements.each(function(){
			var element = jQuery(this);
			element.mouseenter(function(){
				var span = element.siblings('span');
				if(span.length){
					span.hide();
					element.removeClass(errorClass);
				}
			});
		});

		// check field
		function checkField(i, obj) {
			var currentObject = jQuery(obj);
			var currentParent = currentObject;

			// not empty fields
			if(currentObject.hasClass('required')) {
				if(currentObject.val() == currentObject.attr('alt')){
					var span = currentObject.siblings('span:not(.err)');
					if(span.length){span.show();}
					flag = true;
				}
				else{
					setState(currentParent, currentObject, false);
				}
			}
			// correct email fields
			if(currentObject.hasClass('required-email')) {
				if(currentObject.val() == currentObject.attr('alt')){
					var span = currentObject.siblings('span:not(.err)');
					if(span.length){span.show();}
					flag = true;
				}
				else{
					setState(currentParent, currentObject, !regEmail.test(currentObject.val()));
				}
			}
			// correct number fields
			if(currentObject.hasClass('required-number')) {
				if(currentObject.val() == currentObject.attr('alt')){
					var span = currentObject.siblings('span:not(.err)');
					if(span.length){span.show();}
					flag = true;
				}
				else{
					setState(currentParent, currentObject, !regPhone.test(currentObject.val()));
				}
			}
			// something selected
			if(currentObject.hasClass('required-select')) {
				setState(currentParent, currentObject, currentObject.get(0).selectedIndex === 0);
			}
		}

		// set state
		function setState(hold, field, error) {
			hold.removeClass(errorClass).removeClass(successClass);
			if(error) {
				if (field.val() != field.attr('alt')) {
					hold.addClass(errorClass);
					var err = field.siblings('.err');
					if (err.length) {
						err.show().mouseenter(function(){
							err.hide();
						});
					}
				}

				field.one('focus',function(){hold.removeClass(errorClass).removeClass(successClass)});
				successFlag = false;
			} else {
				hold.addClass(successClass);
			}
		}

		// form event handlers
		form.submit(function() {
			if (validateForm()) {
				if (!flag) {
					jQuery.ajax({
						url: form.attr('action'),
						data: form.serialize(),
						type: 'POST',
						success: function(){
							jQuery(window).trigger('openPopup', '#success-message');
							jQuery('input:text').each(function(){
								this.value = this.defaultValue;
							})
						},
						error: function(){
							alert('AJAX Error!')
						}
					});
				}
				else{
					flag = false;
				}
			}
			return false;
		});
	})
}

function initPlugins(){
	clearFormFields({
		clearInputs: true,
		clearTextareas: true,
		passwordFieldText: true,
		addClassFocus: "focus",
		filterClass: "default"
	});
	initAutoScalingNav({
		menuId: "main-nav",
		sideClasses: true,
		minPaddings: 0
	});
	initAutoScalingNav({
		menuId: "tabs-list",
		sideClasses: true,
		minPaddings: 0,
		equalLinks:true
	});
	jQuery('div.main-gallery').scrollGallery({
		sliderHolder: '.gallery-holder',
		slider:'>ul',
		slides: '>li',
		switcherClassName:'.switcher-list',
		generatePagination:'.switcher',
		switcherClassTo:'li',
		autoRotation:true,
		switchTime:6000,
		duration:1000
	});
}

function initTabs()
{
	var sets = document.getElementsByTagName("ul");
	for (var i = 0; i < sets.length; i++)
	{
		if (sets[i].className.indexOf("tabset") != -1)
		{
			var tabs = [];
			var links = sets[i].getElementsByTagName("a");
			for (var j = 0; j < links.length; j++)
			{
				if (links[j].className.indexOf("tab") != -1)
				{
					tabs.push(links[j]);
					links[j].tabs = tabs;
					var c = document.getElementById(links[j].href.substr(links[j].href.indexOf("#") + 1));
					if (c) if (links[j].className.indexOf("active") != -1) c.style.display = "block";
					else c.style.display = "none";

					links[j].onclick = function ()
					{
						var c = document.getElementById(this.href.substr(this.href.indexOf("#") + 1));
						if (c)
						{
							for (var i = 0; i < this.tabs.length; i++)
							{
								var tab = document.getElementById(this.tabs[i].href.substr(this.tabs[i].href.indexOf("#") + 1));
								if (tab)
								{
									tab.style.display = "none";
								}
								this.tabs[i].className = this.tabs[i].className.replace("active", "");
							}
							this.className += " active";
							c.style.display = "block";
							return false;
						}
					}
				}
			}
		}
	}
}

// vertical gallery init
function initCycleGalleryV() {
	// settings
	var _activeClass = 'active';
	var _switchTime = 5000;
	var _speed = 450;

	jQuery('div.aside-gallery').each(function(){
		// gallery options
		var _holder = jQuery(this);
		var _btnPrev = _holder.find('a.btn-top');
		var _btnNext = _holder.find('a.btn-down');
		var _pagination = _holder.find('ul.menu li');
		var _slidesHolder = _holder.find('div.gallery-holder');
		var _slider = _slidesHolder.find('ul');
		var _slides = _slider.children();
		var _slidesCount = _slides.length;
		var _currentIndex = 0;
		var _sumHeight = 0;
		var _animating = false;
		var _autoRotation = false;
		var _rotateDirection = nextSlide;
		var _pauseOnHover = true;
		var _timer;

		_holder.css({position: 'relative'});
		_slider.css({position: 'relative'});
		if(_pagination){_pagination.eq(_currentIndex).addClass(_activeClass);}
		// gallery init
		_slides.each(function(ind){
			_sumHeight += jQuery(this).attr('rel',ind).outerHeight(true);
		});
		_slider.prepend(_slides.clone()).append(_slides.clone());
		_slider.css({marginTop:-_sumHeight});

		if(_autoRotation){autoRotate();}

		function autoRotate() {
			if(_timer) clearInterval(_timer);
			if(_autoRotation){
				_timer = setInterval(_rotateDirection, _switchTime);
			}
		}

		if(_pauseOnHover){
			_holder.hover(function(){
				if(_timer) clearInterval(_timer);
			},function(){
				autoRotate();
			});
		}

		// gallery control
		_btnPrev.click(prevSlide);
		_btnNext.click(nextSlide);

		// gallery animation
		function prevSlide() {
			if(!_animating) {
				_currentIndex--;
				switchSlide();
			}
			return false;
		}
		function nextSlide() {
			if(!_animating) {
				_currentIndex++;
				switchSlide();
			}
			return false;
		}

		function switchSlide() {
			_animating = true;
			var offset = 0;
			if(_currentIndex>=0) offset = -_sumHeight- _slider.children().eq(_currentIndex ).position().top
			else offset = -_slider.children().eq(_slidesCount+_currentIndex).position().top;

			_slider.animate({marginTop:offset},{duration:_speed, queue:false,complete:function(){
				if(Math.abs(_currentIndex) == _slidesCount) {
					_currentIndex = 0;
					_slider.css({marginTop:-_sumHeight});
				}
				_animating = false;
			}});
			if(_pagination.length){
				_pagination.removeClass(_activeClass);
				_pagination.eq(_currentIndex).addClass(_activeClass);
				if(_currentIndex > _pagination.length - 1){
					_pagination.eq(0).addClass(_activeClass);
				}
			}
		}

		// event handler
		_holder.bind('scrollto',function(e,h){
			if(!_animating) {
				if(_currentIndex == _slidesCount-1) _currentIndex = _slidesCount;
				else _currentIndex = h.num;
				switchSlide();
			}
		})

		// clone events
		_slider.children().each(function(){
			var link = jQuery(this);
			var ind = parseInt(link.attr('rel'));
			link.click(function(){
				_holder.trigger('setslide',{num:ind});
			})
		})
	});
}

// scrolling gallery plugin
jQuery.fn.scrollGallery = function(_options){
	var _options = jQuery.extend({
		sliderHolder: '>div',
		slider:'>ul',
		slides: '>li',
		pagerLinks:'div.pager a',
		btnPrev:'a.link-prev',
		btnNext:'a.link-next',
		activeClass:'active',
		disabledClass:'disabled',
		generatePagination:'div.pg-holder',
		switcherClassName:'switcher',
		switcherClassTo:'a',
		curNum:'em.scur-num',
		allNum:'em.sall-num',
		circleSlide:true,
		pauseClass:'gallery-paused',
		pauseButton:'none',
		pauseOnHover:true,
		stopAfterClick:false,
		autoRotation:false,
		switchTime:5000,
		duration:650,
		easing:'swing',
		event:'click',
		splitCount:false,
		afterInit:false,
		vertical:false,
		step:false
	},_options);

	return this.each(function(){
		// gallery options
		var _this = jQuery(this);
		var _sliderHolder = jQuery(_options.sliderHolder, _this);
		var _slider = jQuery(_options.slider, _sliderHolder);
		var _slides = jQuery(_options.slides, _slider);
		var _btnPrev = jQuery(_options.btnPrev, _this);
		var _btnNext = jQuery(_options.btnNext, _this);
		var _pagerLinks = jQuery(_options.pagerLinks, _this);
		var _switcherClassName = _options.switcherClassName;
		var _switcherClassTo = _options.switcherClassTo;
		var _generatePagination = jQuery(_options.generatePagination, _this);
		var _curNum = jQuery(_options.curNum, _this);
		var _allNum = jQuery(_options.allNum, _this);
		var _pauseButton = jQuery(_options.pauseButton, _this);
		var _pauseOnHover = _options.pauseOnHover;
		var _pauseClass = _options.pauseClass;
		var _autoRotation = _options.autoRotation;
		var _activeClass = _options.activeClass;
		var _disabledClass = _options.disabledClass;
		var _easing = _options.easing;
		var _duration = _options.duration;
		var _switchTime = _options.switchTime;
		var _controlEvent = _options.event;
		var _step = _options.step;
		var _vertical = _options.vertical;
		var _circleSlide = _options.circleSlide;
		var _stopAfterClick = _options.stopAfterClick;
		var _afterInit = _options.afterInit;
		var _splitCount = _options.splitCount;

		// gallery init
		if(!_slides.length) return;

		if(_splitCount) {
			var curStep = 0;
			var newSlide = jQuery('<slide>').addClass('split-slide');
			_slides.each(function(){
				newSlide.append(this);
				curStep++;
				if(curStep > _splitCount-1) {
					curStep = 0;
					_slider.append(newSlide);
					newSlide = jQuery('<slide>').addClass('split-slide');
				}
			});
			if(curStep) _slider.append(newSlide);
			_slides = _slider.children();
		}

		var _currentStep = 0;
		var _sumWidth = 0;
		var _sumHeight = 0;
		var _hover = false;
		var _stepWidth;
		var _stepHeight;
		var _stepCount;
		var _offset;
		var _timer;

		_slides.each(function(){
			_sumWidth+=jQuery(this).outerWidth(true);
			_sumHeight+=jQuery(this).outerHeight(true);
		});

		// calculate gallery offset
		function recalcOffsets() {
			if(_vertical) {
				if(_step) {
					_stepHeight = _slides.eq(_currentStep).outerHeight(true);
					_stepCount = Math.ceil((_sumHeight-_sliderHolder.height())/_stepHeight)+1;
					_offset = -_stepHeight*_currentStep;
				} else {
					_stepHeight = _sliderHolder.height();
					_stepCount = Math.ceil(_sumHeight/_stepHeight);
					_offset = -_stepHeight*_currentStep;
					if(_offset < _stepHeight-_sumHeight) _offset = _stepHeight-_sumHeight;
				}
			} else {
				if(_step) {
					_stepWidth = _slides.eq(_currentStep).outerWidth(true)*_step;
					_stepCount = Math.ceil((_sumWidth-_sliderHolder.width())/_stepWidth)+1;
					_offset = -_stepWidth*_currentStep;
					if(_offset < _sliderHolder.width()-_sumWidth) _offset = _sliderHolder.width()-_sumWidth;
				} else {
					_stepWidth = _sliderHolder.width();
					_stepCount = Math.ceil(_sumWidth/_stepWidth);
					_offset = -_stepWidth*_currentStep;
					if(_offset < _stepWidth-_sumWidth) _offset = _stepWidth-_sumWidth;
				}
			}
		}

		// gallery control
		if(_btnPrev.length) {
			_btnPrev.bind(_controlEvent,function(){
				if(_stopAfterClick) stopAutoSlide();
				prevSlide();
				return false;
			});
		}
		if(_btnNext.length) {
			_btnNext.bind(_controlEvent,function(){
				if(_stopAfterClick) stopAutoSlide();
				nextSlide();
				return false;
			});
		}
		if(_generatePagination.length) {
			_generatePagination.empty();
			recalcOffsets();
			var _list = jQuery('<ul class="'+_switcherClassName+'" />');
			for(var i=0; i<_stepCount; i++) jQuery('<li><a href="#">'+(i+1)+'</a></li>').appendTo(_list);
			_list.appendTo(_generatePagination);
			if(_switcherClassTo.toLowerCase() == 'li'){
				_pagerLinks = _list.children();
			}else{
				_pagerLinks = _list.children().find('a');
			}
		}
		if(_pagerLinks.length) {
			_pagerLinks.each(function(_ind){
				jQuery(this).bind(_controlEvent,function(){
					if(_currentStep != _ind) {
						if(_stopAfterClick) stopAutoSlide();
						_currentStep = _ind;
						switchSlide();
					}
					return false;
				});
			});
		}

		// gallery animation
		function prevSlide() {
			recalcOffsets();
			if(_currentStep > 0) _currentStep--;
			else if(_circleSlide) _currentStep = _stepCount-1;
			switchSlide();
		}
		function nextSlide() {
			recalcOffsets();
			if(_currentStep < _stepCount-1) _currentStep++;
			else if(_circleSlide) _currentStep = 0;
			switchSlide();
		}
		function refreshStatus() {
			if(_pagerLinks.length) _pagerLinks.removeClass(_activeClass).eq(_currentStep).addClass(_activeClass);
			if(!_circleSlide) {
				_btnPrev.removeClass(_disabledClass);
				_btnNext.removeClass(_disabledClass);
				if(_currentStep == 0) _btnPrev.addClass(_disabledClass);
				if(_currentStep == _stepCount-1) _btnNext.addClass(_disabledClass);
			}
			if(_curNum.length) _curNum.text(_currentStep+1);
			if(_allNum.length) _allNum.text(_stepCount);
		}
		function switchSlide() {
			recalcOffsets();
			if(_vertical) _slider.animate({marginTop:_offset},{duration:_duration,queue:false,easing:_easing});
			else _slider.animate({marginLeft:_offset},{duration:_duration,queue:false,easing:_easing});
			refreshStatus();
			autoSlide();
		}

		// autoslide function
		function stopAutoSlide() {
			if(_timer) clearTimeout(_timer);
			_autoRotation = false;
		}
		function autoSlide() {
			if(!_autoRotation || _hover) return;
			if(_timer) clearTimeout(_timer);
			_timer = setTimeout(nextSlide,_switchTime+_duration);
		}
		if(_pauseOnHover) {
			_this.hover(function(){
				_hover = true;
				if(_timer) clearTimeout(_timer);
			},function(){
				_hover = false;
				autoSlide();
			});
		}
		jQuery(window).focus(function(){
			autoSlide();
		}).blur(function(){
			if(_timer) clearTimeout(_timer);
		});
		recalcOffsets();
		refreshStatus();
		autoSlide();

		// pause buttton
		if(_pauseButton.length) {
			_pauseButton.click(function(){
				if(_this.hasClass(_pauseClass)) {
					_this.removeClass(_pauseClass);
					_autoRotation = true;
					autoSlide();
				} else {
					_this.addClass(_pauseClass);
					stopAutoSlide();
				}
				return false;
			});
		}

		if(_afterInit && typeof _afterInit === 'function') _afterInit(_this, _slides);
	});
}

// popups function
function initPopups() {
	var _zIndex = 1000;
	var _fadeSpeed = 350;
	var _faderOpacity = 0.75;
	var _faderBackground = '#424242';
	var _faderId = 'lightbox-overlay';
	var _closeLink = 'a.btn-close, a.close, a.cancel, .close-btn';
	var _fader;
	var _lightbox = null;
	var _ajaxClass = 'ajax';
	var _openers = jQuery('a.has-popup');
	var _page = jQuery(document);
	var _minWidth = jQuery('body > div:eq(0)').outerWidth();
	var _scroll = false;

	// init popup fader
	_fader = jQuery('#'+_faderId);
	if(!_fader.length) {
		_fader = jQuery('<div />');
		_fader.attr('id',_faderId);
		jQuery('body').append(_fader);
	}
	_fader.css({
		opacity:_faderOpacity,
		backgroundColor:_faderBackground,
		position:'absolute',
		overflow:'hidden',
		display:'none',
		top:0,
		left:0,
		zIndex:_zIndex
	});

	// IE6 iframe fix
	if(jQuery.browser.msie && jQuery.browser.version < 7) {
		if(!_fader.children().length) {
			var _frame = jQuery('<iframe src="javascript:false" frameborder="0" scrolling="no" />');
			_frame.css({
				opacity:0,
				width:'100%',
				height:'100%'
			});
			var _frameOverlay = jQuery('<div>');
			_frameOverlay.css({
				top:0,
				left:0,
				zIndex:1,
				opacity:0,
				background:'#000',
				position:'absolute',
				width:'100%',
				height:'100%'
			});
			_fader.empty().append(_frame).append(_frameOverlay);
		}
	}

	// lightbox positioning function
	function positionLightbox() {
		if(_lightbox) {
			var _windowHeight = jQuery(window).height();
			var _windowWidth = jQuery(window).width();
			var _lightboxWidth = _lightbox.outerWidth();
			var _lightboxHeight = _lightbox.outerHeight();
			var _pageHeight = _page.height();

			if (_windowWidth < _minWidth) _fader.css('width',_minWidth);
				else _fader.css('width','100%');
			if (_windowHeight < _pageHeight) _fader.css('height',_pageHeight);
				else _fader.css('height',_windowHeight);

			_lightbox.css({
				position:'absolute',
				zIndex:(_zIndex+1)
			});

			// vertical position
			if (_windowHeight > _lightboxHeight) {
				if (jQuery.browser.msie && jQuery.browser.version < 7) {
					_lightbox.css({
						position:'absolute',
						top: parseInt(jQuery(window).scrollTop()) + (_windowHeight - _lightboxHeight) / 2
					});
				} else {
					_lightbox.css({
						position:'fixed',
						top: (_windowHeight - _lightboxHeight) / 2
					});
				}
			} else {
				var _faderHeight = _fader.height();
				if(_faderHeight < _lightboxHeight) _fader.css('height',_lightboxHeight);
				if (!_scroll) {
					if (_faderHeight - _lightboxHeight > parseInt(jQuery(window).scrollTop())) {
						_faderHeight = parseInt(jQuery(window).scrollTop())
						_scroll = _faderHeight;
					} else {
						_scroll = _faderHeight - _lightboxHeight;
					}
				}
				_lightbox.css({
					position:'absolute',
					top: _scroll
				});
			}

			// horizontal position
			if (jQuery(window).width() > _lightbox.outerWidth()) _lightbox.css({left:(jQuery(window).width() - _lightbox.outerWidth()) / 2, marginLeft: 0});
			else _lightbox.css({left: _minWidth / 2 - _lightbox.outerWidth() / 2, marginLeft: -jQuery(window).scrollLeft()});
		}
	}

	// show/hide lightbox
	function toggleState(_state) {
		if(!_lightbox) return;
		if(_state) {
			_fader.fadeIn(_fadeSpeed,function(){
				_lightbox.fadeIn(_fadeSpeed);
			});
			_scroll = false;
			positionLightbox();
		} else {
			_lightbox.fadeOut(_fadeSpeed,function(){
				_fader.fadeOut(_fadeSpeed, function(){
					if(_lightbox.hasClass('ajax')){
						_lightbox.removeClass('ajax').find('.placeholder').empty();
					}
				});
				_scroll = false;
			});
		}
	}

	// popup actions
	function initPopupActions(_obj) {
		if(_obj && !_obj.get(0).jsInit) {
			_obj.get(0).jsInit = true;
			// close link
			_obj.find(_closeLink).click(function(){
				_lightbox = _obj;
				toggleState(false);
				return false;
			});
		}
	}

	// lightbox openers
	_openers.each(function(){
		var _opener = jQuery(this);
		var _target = _opener.attr('rel');
		var _source = _opener.attr('href');
		if(_source == '#'){_source = false;}

		// popup load type - ajax or static
		if(_opener.hasClass(_ajaxClass)) {
			_opener.click(function(){
				// ajax load
				_lightbox = jQuery(_target);

				getContent();

				initPopupActions(_lightbox);

				function getContent(_url, _type){
					var _path = !_url ? _source : _url;
					if(_path == '#'){return;}
					jQuery.ajax({
						url: _path,
						type: 'get',
						dataType:'html',
						success: function(respand){
							// append loaded popup
							_lightbox.addClass('ajax').find('.placeholder').empty().html(respand);
							// show lightbox
							toggleState(true);
						},
						error: function(msg){
							alert('AJAX error!');
						}
					});
				}
				return false;
			});
		} else {
			if(jQuery(_target).length){
				// init actions for popup
				var _popup = jQuery(_target);
				initPopupActions(_popup);
					// open popup
					_opener.click(function(){
					_popup.find('div.text').find('div.block').show().filter('[rel]').hide();
					if(_lightbox){
						_lightbox.fadeOut(_fadeSpeed,function(){
							_lightbox = _popup.hide();
							toggleState(true);
						});
					} else{
						_lightbox = _popup.hide();
						toggleState(true);
					}
					return false;
				});
			}
		}
	});

	// event handlers
	jQuery(window).resize(positionLightbox);
	jQuery(window).scroll(positionLightbox);
	jQuery(document).keydown(function (e) {
		if (!e) evt = window.event;
		if (e.keyCode == 27) {
			toggleState(false);
		}
	})
	_fader.click(function(){
		if(!_fader.is(':animated')) toggleState(false);
		return false;
	})
}

// popups function
function initPopup() {
	var _zIndex = 1000;
	var _fadeSpeed = 350;
	var _faderOpacity = 0.75;
	var _faderBackground = '#000';
	var _faderId = 'lightbox-overlay';
	var _closeLink = 'a.btn-close, a.close, a.cancel, .close-btn';
	var _fader;
	var _lightbox = null;
	var _ajaxClass = 'ajax-load';
	var _openers = jQuery('a.open-popup');
	var _page = jQuery(document);
	var _minWidth = jQuery('body > div:eq(0)').outerWidth();
	var _scroll = false;

	// init popup fader
	_fader = jQuery('#'+_faderId);
	if(!_fader.length) {
		_fader = jQuery('<div />');
		_fader.attr('id',_faderId);
		jQuery('body').append(_fader);
	}
	_fader.css({
		opacity:_faderOpacity,
		backgroundColor:_faderBackground,
		position:'absolute',
		overflow:'hidden',
		display:'none',
		top:0,
		left:0,
		zIndex:_zIndex
	});

	// IE6 iframe fix
	if(jQuery.browser.msie && jQuery.browser.version < 7) {
		if(!_fader.children().length) {
			var _frame = jQuery('<iframe src="javascript:false" frameborder="0" scrolling="no" />');
			_frame.css({
				opacity:0,
				width:'100%',
				height:'100%'
			});
			var _frameOverlay = jQuery('<div>');
			_frameOverlay.css({
				top:0,
				left:0,
				zIndex:1,
				opacity:0,
				background:'#000',
				position:'absolute',
				width:'100%',
				height:'100%'
			});
			_fader.empty().append(_frame).append(_frameOverlay);
		}
	}

	// lightbox positioning function
	function positionLightbox() {
		if(_lightbox) {
			var _windowHeight = jQuery(window).height();
			var _windowWidth = jQuery(window).width();
			var _lightboxWidth = _lightbox.outerWidth();
			var _lightboxHeight = _lightbox.outerHeight();
			var _pageHeight = _page.height();

			if (_windowWidth < _minWidth) _fader.css('width',_minWidth);
				else _fader.css('width','100%');
			if (_windowHeight < _pageHeight) _fader.css('height',_pageHeight);
				else _fader.css('height',_windowHeight);

			_lightbox.css({
				position:'absolute',
				zIndex:(_zIndex+1)
			});

			// vertical position
			if (_windowHeight > _lightboxHeight) {
				if (jQuery.browser.msie && jQuery.browser.version < 7) {
					_lightbox.css({
						position:'absolute',
						top: parseInt(jQuery(window).scrollTop()) + (_windowHeight - _lightboxHeight) / 2
					});
				} else {
					_lightbox.css({
						position:'fixed',
						top: (_windowHeight - _lightboxHeight) / 2
					});
				}
			} else {
				var _faderHeight = _fader.height();
				if(_faderHeight < _lightboxHeight) _fader.css('height',_lightboxHeight);
				if (!_scroll) {
					if (_faderHeight - _lightboxHeight > parseInt(jQuery(window).scrollTop())) {
						_faderHeight = parseInt(jQuery(window).scrollTop())
						_scroll = _faderHeight;
					} else {
						_scroll = _faderHeight - _lightboxHeight;
					}
				}
				_lightbox.css({
					position:'absolute',
					top: _scroll
				});
			}

			// horizontal position
			if (_fader.width() > _lightbox.outerWidth()) _lightbox.css({left:(_fader.width() - _lightbox.outerWidth()) / 2});
			else _lightbox.css({left: 0});
		}
	}

	// show/hide lightbox
	function toggleState(_state) {
		if(!_lightbox) return;
		if(_state) {
			_fader.fadeIn(_fadeSpeed,function(){
				_lightbox.fadeIn(_fadeSpeed);
			});
			_scroll = false;
			positionLightbox();
		} else {
			_lightbox.fadeOut(_fadeSpeed,function(){
				_fader.fadeOut(_fadeSpeed);
				_scroll = false;
			});
		}
	}

	// popup actions
	function initPopupActions(_obj) {
		if(!_obj.get(0).jsInit) {
			_obj.get(0).jsInit = true;
			// close link
			_obj.find(_closeLink).click(function(){
				_lightbox = _obj;
				toggleState(false);
				return false;
			});
		}
	}

	// lightbox openers
	_openers.each(function(){
		var _opener = jQuery(this);
		var _target = _opener.attr('href');

		// popup load type - ajax or static
		if(_opener.hasClass(_ajaxClass)) {
			_opener.click(function(){
				// ajax load
				if(jQuery('div[rel*="'+_target+'"]').length == 0) {
					jQuery.ajax({
						url: _target,
						type: "POST",
						dataType: "html",
						success: function(msg){
							// append loaded popup
							_lightbox = jQuery(msg);
							_lightbox.find('img').load(positionLightbox)
							_lightbox.attr('rel',_target).hide().css({
								position:'absolute',
								zIndex:(_zIndex+1),
								top: -9999,
								left: -9999
							});
							jQuery('body').append(_lightbox);

							// init js for lightbox
							initPopupActions(_lightbox);

							// show lightbox
							toggleState(true);
						},
						error: function(msg){
							alert('AJAX error!');
							return false;
						}
					});
				} else {
					_lightbox = jQuery('div[rel*="'+_target+'"]');
					toggleState(true);
				}
				return false;
			});
		} else {
			if(jQuery(_target).length) {
				// init actions for popup
				var _popup = jQuery(_target);
				initPopupActions(_popup);
					// open popup
					_opener.click(function(){
					if(_lightbox) {
						_lightbox.fadeOut(_fadeSpeed,function(){
							_lightbox = _popup.hide();
							toggleState(true);
						})
					} else {
						_lightbox = _popup.hide();
						toggleState(true);
					}
					return false;
				});
			}
		}
	});

	jQuery(window).bind('openPopup',function(e, _target){
		var _popup = jQuery(_target);
		initPopupActions(_popup);
		if(_lightbox) {
			_lightbox.fadeOut(_fadeSpeed,function(){
				_lightbox = _popup.hide();
				toggleState(true);
			})
		} else {
			_lightbox = _popup.hide();
			toggleState(true);
		}
		return false;
	});

	// event handlers
	jQuery(window).resize(positionLightbox);
	jQuery(window).scroll(positionLightbox);
	jQuery(document).keydown(function (e) {
		if (!e) evt = window.event;
		if (e.keyCode == 27) {
			toggleState(false);
		}
	})
	_fader.click(function(){
		if(!_fader.is(':animated')) toggleState(false);
		return false;
	})
}

function clearFormFields(o)
{
	if (o.clearInputs == null) o.clearInputs = true;
	if (o.clearTextareas == null) o.clearTextareas = true;
	if (o.passwordFieldText == null) o.passwordFieldText = false;
	if (o.addClassFocus == null) o.addClassFocus = false;
	if (!o.filterClass) o.filterClass = "default";
	if(o.clearInputs) {
		var inputs = document.getElementsByTagName("input");
		for (var i = 0; i < inputs.length; i++ ) {
			if((inputs[i].type == "text" || inputs[i].type == "password") && inputs[i].className.indexOf(o.filterClass) == -1) {
				inputs[i].valueHtml = inputs[i].value;
				inputs[i].onfocus = function ()	{
					if(this.valueHtml == this.value) this.value = "";
					if(this.fake) {
						inputsSwap(this, this.previousSibling);
						this.previousSibling.focus();
					}
					if(o.addClassFocus && !this.fake) {
						this.className += " " + o.addClassFocus;
						this.parentNode.className += " parent-" + o.addClassFocus;
					}
				}
				inputs[i].onblur = function () {
					if(this.value == "") {
						this.value = this.valueHtml;
						if(o.passwordFieldText && this.type == "password") inputsSwap(this, this.nextSibling);
					}
					if(o.addClassFocus) {
						this.className = this.className.replace(o.addClassFocus, "");
						this.parentNode.className = this.parentNode.className.replace("parent-"+o.addClassFocus, "");
					}
				}
				if(o.passwordFieldText && inputs[i].type == "password") {
					var fakeInput = document.createElement("input");
					fakeInput.type = "text";
					fakeInput.value = inputs[i].value;
					fakeInput.className = inputs[i].className;
					fakeInput.fake = true;
					inputs[i].parentNode.insertBefore(fakeInput, inputs[i].nextSibling);
					inputsSwap(inputs[i], null);
				}
			}
		}
	}
	if(o.clearTextareas) {
		var textareas = document.getElementsByTagName("textarea");
		for(var i=0; i<textareas.length; i++) {
			if(textareas[i].className.indexOf(o.filterClass) == -1) {
				textareas[i].valueHtml = textareas[i].value;
				textareas[i].onfocus = function() {
					if(this.value == this.valueHtml) this.value = "";
					if(o.addClassFocus) {
						this.className += " " + o.addClassFocus;
						this.parentNode.className += " parent-" + o.addClassFocus;
					}
				}
				textareas[i].onblur = function() {
					if(this.value == "") this.value = this.valueHtml;
					if(o.addClassFocus) {
						this.className = this.className.replace(o.addClassFocus, "");
						this.parentNode.className = this.parentNode.className.replace("parent-"+o.addClassFocus, "");
					}
				}
			}
		}
	}
	function inputsSwap(el, el2) {
		if(el) el.style.display = "none";
		if(el2) el2.style.display = "inline";
	}
}

function initAutoScalingNav(o) {
	if (!o.menuId) o.menuId = "nav";
	if (!o.tag) o.tag = "a";
	if (!o.spacing) o.spacing = 0;
	if (!o.constant) o.constant = 0;
	if (!o.minPaddings) o.minPaddings = 0;
	if (!o.liHovering) o.liHovering = false;
	if (!o.sideClasses) o.sideClasses = false;
	if (!o.equalLinks) o.equalLinks = false;
	if (!o.flexible) o.flexible = false;
	var nav = document.getElementById(o.menuId);
	if(nav) {
		nav.className += " scaling-active";
		var lis = nav.getElementsByTagName("li");
		var asFl = [];
		var lisFl = [];
		var width = 0;
		for (var i=0, j=0; i<lis.length; i++) {
			if(lis[i].parentNode == nav) {
				var t = lis[i].getElementsByTagName(o.tag).item(0);
				asFl.push(t);
				asFl[j++].width = t.offsetWidth;
				lisFl.push(lis[i]);
				if(width < t.offsetWidth) width = t.offsetWidth;
			}
			if(o.liHovering) {
				lis[i].onmouseover = function() {
					this.className += " hover";
				}
				lis[i].onmouseout = function() {
					this.className = this.className.replace("hover", "");
				}
			}
		}
		var menuWidth = nav.clientWidth - asFl.length*o.spacing - o.constant;
		if(o.equalLinks && width * asFl.length < menuWidth) {
			for (var i=0; i<asFl.length; i++) {
				asFl[i].width = width;
			}
		}
		width = getItemsWidth(asFl);
		if(width < menuWidth) {
			var version = navigator.userAgent.toLowerCase();
			for (var i=0; getItemsWidth(asFl) < menuWidth; i++) {
				asFl[i].width++;
				if(!o.flexible) {
					asFl[i].style.width = asFl[i].width + "px";
				}
				if(i >= asFl.length-1) i=-1;
			}
			if(o.flexible) {
				for (var i=0; i<asFl.length; i++) {
					width = (asFl[i].width - o.spacing - o.constant/asFl.length)/menuWidth*100;
					if(i != asFl.length-1) {
						lisFl[i].style.width = width + "%";
					}
					else {
						if(navigator.appName.indexOf("Microsoft Internet Explorer") == -1 || version.indexOf("msie 8") != -1 || version.indexOf("msie 9") != -1)
							lisFl[i].style.width = width + "%";
					}
				}
			}
		}
		else if(o.minPaddings > 0) {
			for (var i=0; i<asFl.length; i++) {
				asFl[i].style.paddingLeft = o.minPaddings + "px";
				asFl[i].style.paddingRight = o.minPaddings + "px";
			}
		}
		if(o.sideClasses) {
			lisFl[0].className += " first-child";
			lisFl[0].getElementsByTagName(o.tag).item(0).className += " first-child-a";
			lisFl[lisFl.length-1].className += " last-child";
			lisFl[lisFl.length-1].getElementsByTagName(o.tag).item(0).className += " last-child-a";
		}
		nav.className += " scaling-ready";
	}
	function getItemsWidth(a) {
		var w = 0;
		for(var q=0; q<a.length; q++) {
			w += a[q].width;
		}
		return w;
	}
}

var VSA_scrollAreas = new Array();
var VSA_default_imagesPath = "/wp-content/themes/stopirsdept/images";
var VSA_default_btnUpImage = "button-up.gif";
var VSA_default_btnDownImage = "button-down.gif";
var VSA_default_scrollStep = 5;
var VSA_default_wheelSensitivity = 10;
var VSA_default_scrollbarPosition = 'right';//'left','right','inline';
var VSA_default_scrollButtonHeight = 15;
var VSA_default_scrollbarWidth = 9;
var VSA_resizeTimer = 2000;
var VSA_touchFlag = isTouchDevice(); // true/false - move scroll with scrollable body

function VSA_initScrollbars() {
	if(!document.body.children) return;
	var scrollElements = VSA_getElements("vscrollable", "DIV", document, "class");
	for (var i=0; i<scrollElements.length; i++)
	{
		VSA_scrollAreas[i] = new VScrollArea(i, scrollElements[i]);
	}
}

function isTouchDevice() {
	try {
		document.createEvent("TouchEvent");
		return true;
	} catch (e) {
		return false;
	}
}

function touchHandler(event) {
	var touches = event.changedTouches, first = touches[0], type = "";
	switch(event.type) {
		case "touchstart": type = "mousedown"; break;
		case "touchmove":  type = "mousemove"; break;
		case "touchend":   type = "mouseup"; break;
		default: return;
	}
	var simulatedEvent = document.createEvent("MouseEvent");
	simulatedEvent.initMouseEvent(type, true, true, window, 1, first.screenX, first.screenY, first.clientX, first.clientY, false, false, false, false, 0/*left*/, null);
	first.target.dispatchEvent(simulatedEvent);
	event.preventDefault();
}

function VScrollArea(index, elem) //constructor
{
	this.index = index;
	this.element = elem;

	var attr = this.element.getAttribute("imagesPath");
	this.imagesPath = attr ? attr : VSA_default_imagesPath;

	attr = this.element.getAttribute("btnUpImage");
	this.btnUpImage = attr ? attr : VSA_default_btnUpImage;

	attr = this.element.getAttribute("btnDownImage");
	this.btnDownImage = attr ? attr : VSA_default_btnDownImage;

	attr = Number(this.element.getAttribute("scrollStep"));
	this.scrollStep = attr ? attr : VSA_default_scrollStep;

	attr = Number(this.element.getAttribute("wheelSensitivity"));
	this.wheelSensitivity = attr ? attr : VSA_default_wheelSensitivity;

	attr = this.element.getAttribute("scrollbarPosition");
	this.scrollbarPosition = attr ? attr : VSA_default_scrollbarPosition;

	attr = this.element.getAttribute("scrollButtonHeight");
	this.scrollButtonHeight = attr ? attr : VSA_default_scrollButtonHeight;

	attr = this.element.getAttribute("scrollbarWidth");
	this.scrollbarWidth = attr ? attr : VSA_default_scrollbarWidth;

	this.scrolling = false;

	this.iOffsetY = 0;
	this.scrollHeight = 0;
	this.scrollContent = null;
	this.scrollbar = null;
	this.scrollup = null;
	this.scrolldown = null;
	this.scrollslider = null;
	this.scroll = null;
	this.enableScrollbar = false;
	this.scrollFactor = 1;
	this.scrollingLimit = 0;
	this.topPosition = 0;

	//functions declaration
	this.init = VSA_init;
	this.scrollUp = VSA_scrollUp;
	this.scrollDown = VSA_scrollDown;
	this.createScrollBar = VSA_createScrollBar;
	this.scrollIt = VSA_scrollIt;

	this.init();
}

function VSA_init() {
	this.scrollContent = document.createElement("DIV");
	this.scrollContent.style.position = "absolute";
	this.scrollContent.style.overflow = "hidden";
	this.scrollContent.style.width = this.element.offsetWidth + "px";
	this.scrollContent.style.height = this.element.offsetHeight + "px";

	while(this.element.childNodes.length) this.scrollContent.appendChild(this.element.childNodes[0]);

	this.element.style.overflow = "hidden";
	this.element.style.display = "block";
	this.element.style.visibility = "visible";
	this.element.style.position = "relative";
	this.element.appendChild(this.scrollContent);

	this.scrollContent.className = 'scroll-content';

	this.element.index = this.index;
	this.element.over = false;

	var _this = this;

	if(document.all && !window.opera) {
		this.element.onmouseenter = function(){_this.element.over = true;};
		this.element.onmouseleave = function(){_this.element.over = false;}
	} else {
		this.element.onmouseover = function(){_this.element.over = true;};
		this.element.onmouseout = function(){_this.element.over = false;}
	}

	if (document.all)
	{
		this.element.onscroll = VSA_handleOnScroll;
		this.element.onresize = VSA_handleResize;
	}
	else
	{
		window.onresize = VSA_handleResize;
	}

	this.createScrollBar();

	if (window.addEventListener) {
		/* DOMMouseScroll is for mozilla. */
		this.element.addEventListener('DOMMouseScroll', VSA_handleMouseWheel, false);
	}
	/* IE/Opera. */
	this.element.onmousewheel = document.onmousewheel = VSA_handleMouseWheel;

	// move content by touch
	if(VSA_touchFlag) {
		_this.scrollContent.onmousedown = function(e) {
			var startY = e.pageY-getRealTop(_this.scrollContent);
			var origTop = _this.scrollContent.scrollTop;
			_this.scrollContent.onmousemove = function(e) {
				var moveY = e.pageY-getRealTop(_this.scrollContent);
				var iNewY = origTop-(moveY-startY);
				if(iNewY < 0) iNewY = 0;
				if(iNewY > _this.scrollContent.scrollHeight) iNewY = _this.scrollContent.scrollHeight;
				_this.scrollContent.scrollTop = iNewY;
				_this.scrollslider.style.top =  1 / _this.scrollFactor * Math.abs(_this.scrollContent.scrollTop) + _this.scrollButtonHeight + "px";
			}
		}
		_this.scrollContent.onmouseup = function(e) {
			_this.scrollContent.onmousemove = null;
		}
		this.scrollContent.addEventListener("touchstart", touchHandler, true);
		this.scrollContent.addEventListener("touchmove", touchHandler, true);
		this.scrollContent.addEventListener("touchend", touchHandler, true);
	}
	window.vscrollLoaded = true;
}

function VSA_createScrollBar()
{
	if (this.scrollbar != null)
	{
		this.element.removeChild(this.scrollbar);
		this.scrollbar = null;
	}

	if (this.scrollContent.scrollHeight <= this.scrollContent.offsetHeight)
		this.enableScrollbar = false;
	else if (this.element.offsetHeight > 2*this.scrollButtonHeight)
		this.enableScrollbar = true;
	else
		this.enableScrollbar = false;

	if (this.scrollContent.scrollHeight - Math.abs(this.scrollContent.scrollTop) < this.element.offsetHeight)
		this.scrollContent.style.top = 0;

	if (this.enableScrollbar)
	{
		this.scrollbar = document.createElement("DIV");
		this.element.appendChild(this.scrollbar);
		this.scrollbar.style.position = "absolute";
		this.scrollbar.style.top = "0px";
		this.scrollbar.style.height = this.element.offsetHeight+"px";
		this.scrollbar.style.width = this.scrollbarWidth + "px";

		this.scrollbar.className = 'vscroll-bar';

		if(this.scrollbarWidth != this.scrollbar.offsetWidth)
		{
			this.scrollbarWidth = this.scrollbar.offsetHeight;
		}

		this.scrollbarWidth = this.scrollbar.offsetWidth;

		if(this.scrollbarPosition == 'left')
		{
			this.scrollContent.style.left = this.scrollbarWidth + 5 + "px";
			this.scrollContent.style.width = this.element.offsetWidth - this.scrollbarWidth - 5 + "px";
		}
		else if(this.scrollbarPosition == 'right')
		{
			this.scrollbar.style.left = this.element.offsetWidth - this.scrollbarWidth  + "px";
			this.scrollContent.style.width = this.element.offsetWidth - this.scrollbarWidth - 5 + "px";
		}

		//create scroll up button
		this.scrollup = document.createElement("DIV");
		this.scrollup.index = this.index;
		this.scrollup.onmousedown = VSA_handleBtnUpMouseDown;
		this.scrollup.onmouseup = VSA_handleBtnUpMouseUp;
		this.scrollup.onmouseout = VSA_handleBtnUpMouseOut;

		if(VSA_touchFlag) {
			this.scrollup.addEventListener("touchstart", touchHandler, true);
			this.scrollup.addEventListener("touchend", touchHandler, true);
		}

		this.scrollup.style.position = "absolute";
		this.scrollup.style.top = "0px";
		this.scrollup.style.left = "0px";
		this.scrollup.style.height = this.scrollButtonHeight + "px";
		this.scrollup.style.width = this.scrollbarWidth + "px";

		this.scrollup.innerHTML = '<img src="' + this.imagesPath + '/' + this.btnUpImage + '" border="0"/>';
		this.scrollbar.appendChild(this.scrollup);

		this.scrollup.className = 'vscroll-up';

		if(this.scrollButtonHeight != this.scrollup.offsetHeight)
		{
			this.scrollButtonHeight = this.scrollup.offsetHeight;
		}

		//create scroll down button
		this.scrolldown = document.createElement("DIV");
		this.scrolldown.index = this.index;
		this.scrolldown.onmousedown = VSA_handleBtnDownMouseDown;
		this.scrolldown.onmouseup = VSA_handleBtnDownMouseUp;
		this.scrolldown.onmouseout = VSA_handleBtnDownMouseOut;

		if(VSA_touchFlag) {
			this.scrolldown.addEventListener("touchstart", touchHandler, true);
			this.scrolldown.addEventListener("touchend", touchHandler, true);
		}

		this.scrolldown.style.position = "absolute";
		this.scrolldown.style.left = "0px";
		this.scrolldown.style.top =  this.scrollbar.offsetHeight - this.scrollButtonHeight + "px";
		this.scrolldown.style.width = this.scrollbarWidth + "px";
		this.scrolldown.innerHTML = '<img src="' + this.imagesPath + '/' + this.btnDownImage + '" border="0"/>';
		this.scrollbar.appendChild(this.scrolldown);

		this.scrolldown.className = 'vscroll-down';

		//create scroll
		this.scroll = document.createElement("DIV");
		this.scroll.index = this.index;
		this.scroll.style.position = "absolute";
		this.scroll.style.zIndex = 0;
		this.scroll.style.textAlign = "center";
		this.scroll.style.top = this.scrollButtonHeight + "px";
		this.scroll.style.left = "0px";
		this.scroll.style.width = this.scrollbarWidth + "px";

		var h = this.scrollbar.offsetHeight - 2*this.scrollButtonHeight;
		this.scroll.style.height = ((h > 0) ? h : 0) + "px";

		this.scroll.innerHTML = '';
		this.scroll.onclick = VSA_handleScrollbarClick;
		this.scrollbar.appendChild(this.scroll);
		this.scroll.style.overflow = "hidden";

		this.scroll.className = "vscroll-line";

		//create slider
		this.scrollslider = document.createElement("DIV");
		this.scrollslider.index = this.index;
		this.scrollslider.style.position = "absolute";
		this.scrollslider.style.zIndex = 1000;
		this.scrollslider.style.textAlign = "center";
		this.scrollslider.innerHTML = '<div id="scrollslider' + this.index + '" style="padding:0;margin:0;"><div class="scroll-bar-top"></div><div class="scroll-bar-bottom"></div></div>';
		this.scrollbar.appendChild(this.scrollslider);

		this.subscrollslider = document.getElementById("scrollslider"+this.index);
		this.subscrollslider.style.height = Math.round((this.scrollContent.offsetHeight/this.scrollContent.scrollHeight)*(this.scrollbar.offsetHeight - 2*this.scrollButtonHeight)) + "px";

		this.scrollslider.className = "vscroll-slider";

		this.scrollHeight = this.scrollbar.offsetHeight - 2*this.scrollButtonHeight - this.scrollslider.offsetHeight;
		this.scrollFactor = (this.scrollContent.scrollHeight - this.scrollContent.offsetHeight)/this.scrollHeight;
		this.topPosition = getRealTop(this.scrollbar) + this.scrollButtonHeight;
		/* this.scrollbarHeight = this.scrollbar.offsetHeight - 2*this.scrollButtonHeight - this.scrollslider.offsetHeight; */

		this.scrollslider.style.top = /* 1 / this.scrollFactor * Math.abs(this.scrollContent.offsetTop) +*/ this.scrollButtonHeight + "px";
		this.scrollslider.style.left = "0px";
		this.scrollslider.style.width = "100%";
		this.scrollslider.onmousedown = VSA_handleSliderMouseDown;
		if(VSA_touchFlag) {
			this.scrollslider.addEventListener("touchstart", touchHandler, true);
		}
		if (document.all)
			this.scrollslider.onmouseup = VSA_handleSliderMouseUp;
	}
	else
		this.scrollContent.style.width = this.element.offsetWidth + "px";
}

function VSA_handleBtnUpMouseDown()
{
	var sa = VSA_scrollAreas[this.index];
	sa.scrolling = true;
	sa.scrollUp();
}

function VSA_handleBtnUpMouseUp()
{
	VSA_scrollAreas[this.index].scrolling = false;
}

function VSA_handleBtnUpMouseOut()
{
	VSA_scrollAreas[this.index].scrolling = false;
}

function VSA_handleBtnDownMouseDown()
{
	var sa = VSA_scrollAreas[this.index];
	sa.scrolling = true;
	sa.scrollDown();
}

function VSA_handleBtnDownMouseUp()
{
	VSA_scrollAreas[this.index].scrolling = false;
}

function VSA_handleBtnDownMouseOut()
{
	VSA_scrollAreas[this.index].scrolling = false;
}

function VSA_scrollIt()
{
	this.scrollContent.scrollTop = this.scrollFactor * ((this.scrollslider.offsetTop + this.scrollslider.offsetHeight/2) - this.scrollButtonHeight - this.scrollslider.offsetHeight/2);
}

function VSA_scrollUp()
{
	if (this.scrollingLimit > 0)
	{
		this.scrollingLimit--;
		if (this.scrollingLimit == 0) this.scrolling = false;
	}
	if (!this.scrolling) return;
	if ( this.scrollContent.scrollTop - this.scrollStep > 0)
	{
		this.scrollContent.scrollTop -= this.scrollStep;
		this.scrollslider.style.top = 1 / this.scrollFactor * Math.abs(this.scrollContent.scrollTop) + this.scrollButtonHeight + "px";
	}
	else
	{
		this.scrollContent.scrollTop = "0";
		this.scrollslider.style.top = this.scrollButtonHeight + "px";
		return;
	}
	setTimeout("VSA_Ext_scrollUp(" + this.index + ")", 30);
}

function VSA_Ext_scrollUp(index)
{
	VSA_scrollAreas[index].scrollUp();
}

function VSA_scrollDown()
{
	if (this.scrollingLimit > 0)
	{
		this.scrollingLimit--;
		if (this.scrollingLimit == 0) this.scrolling = false;
	}
	if (!this.scrolling) return;


	this.scrollContent.scrollTop += this.scrollStep;
	this.scrollslider.style.top =  1 / this.scrollFactor * Math.abs(this.scrollContent.scrollTop) + this.scrollButtonHeight + "px";

	if (this.scrollContent.scrollTop >= (this.scrollContent.scrollHeight - this.scrollContent.offsetHeight))
	{
		this.scrollContent.scrollTop = (this.scrollContent.scrollHeight - this.scrollContent.offsetHeight);
		this.scrollslider.style.top = this.scrollbar.offsetHeight - this.scrollButtonHeight - this.scrollslider.offsetHeight + "px";
		return;
	}

	setTimeout("VSA_Ext_scrollDown(" + this.index + ")", 30);
}

function VSA_Ext_scrollDown(index)
{
	VSA_scrollAreas[index].scrollDown();
}

function VSA_handleMouseMove(evt)
{
	var sa = VSA_scrollAreas[((document.all && !window.opera) ? this.index : document.documentElement.scrollAreaIndex)];
	var posy = 0;
	if (!evt) var evt = window.event;

	if (evt.pageY)
		posy = evt.pageY;
	else if (evt.clientY)
		posy = evt.clientY;

		if (document.all && !window.opera)
		{
			if(!document.addEventListener) {
				posy += document.documentElement.scrollTop;
			}
		}

	var iNewY = posy - sa.iOffsetY - getRealTop(sa.scrollbar) - sa.scrollButtonHeight;
		iNewY += sa.scrollButtonHeight;

	if (iNewY < sa.scrollButtonHeight)
		iNewY = sa.scrollButtonHeight;
	if (iNewY > (sa.scrollbar.offsetHeight - sa.scrollButtonHeight) - sa.scrollslider.offsetHeight)
		iNewY = (sa.scrollbar.offsetHeight - sa.scrollButtonHeight) - sa.scrollslider.offsetHeight;

	sa.scrollslider.style.top = iNewY + "px";

	sa.scrollIt();
}

function VSA_handleSliderMouseDown(evt)
{
	if (!(document.uniqueID && document.compatMode && !window.XMLHttpRequest))
	{
		document.onselectstart = function() { return false; }
		document.onmousedown = function() { return false; }
	}

	var sa = VSA_scrollAreas[this.index];
	if (document.all && !window.opera)
	{
		sa.scrollslider.setCapture()
		sa.iOffsetY = event.offsetY;
		sa.scrollslider.onmousemove = VSA_handleMouseMove;
		if(VSA_touchFlag) {
			sa.scrollslider.addEventListener("touchmove", touchHandler, true);
		}
	}
	else
	{
		if(window.opera)
		{
			sa.iOffsetY = event.offsetY;
		}
		else
		{
			sa.iOffsetY = evt.layerY;
		}
		document.documentElement.scrollAreaIndex = sa.index;
		document.documentElement.addEventListener("mousemove", VSA_handleMouseMove, true);
		document.documentElement.addEventListener("mouseup", VSA_handleSliderMouseUp, true);
		if(VSA_touchFlag) {
			document.documentElement.addEventListener("touchmove", touchHandler, true);
			document.documentElement.addEventListener("touchend", touchHandler, true);
		}
	}
	return false;
}

function VSA_handleSliderMouseUp()
{
	if (!(document.uniqueID && document.compatMode && !window.XMLHttpRequest))
	{
		document.onmousedown = null;
		document.onselectstart = null;
	}

	if (document.all && !window.opera)
	{
		var sa = VSA_scrollAreas[this.index];
		sa.scrollslider.onmousemove = null;
		sa.scrollslider.releaseCapture();
		sa.scrollIt();
	}
	else
	{
		var sa = VSA_scrollAreas[document.documentElement.scrollAreaIndex];
		document.documentElement.removeEventListener("mousemove", VSA_handleMouseMove, true);
		document.documentElement.removeEventListener("mouseup", VSA_handleSliderMouseUp, true);
		if(VSA_touchFlag) {
			document.documentElement.removeEventListener("touchmove", touchHandler, true);
			document.documentElement.removeEventListener("touchend", touchHandler, true);
		}
		sa.scrollIt();
	}
	return false;
}

function VSA_handleResize()
{
	if (VSA_resizeTimer)
	{
		clearTimeout(VSA_resizeTimer);
		VSA_resizeTimer = 0;
	}
	VSA_resizeTimer = setTimeout("VSA_performResizeEvent()", 100);
}

function VSA_performResizeEvent()
{
	for (var i=0; i<VSA_scrollAreas.length; i++)
		VSA_scrollAreas[i].createScrollBar();
}
function VSA_handleMouseWheel(event){
	if (this.index != null) {
		var sa = VSA_scrollAreas[this.index];
		if (sa.scrollbar == null) return;
		sa.scrolling = true;
		sa.scrollingLimit = sa.wheelSensitivity;

		var delta = 0;
		if (!event) /* For IE. */
			event = window.event;
		if (event.wheelDelta) { /* IE/Opera. */
			delta = event.wheelDelta/120;
			/*if (window.opera) delta = -delta;*/
		} else if (event.detail) { /* Mozilla case. */
			delta = -event.detail/3;
		}

		if (delta && sa.element.over) {
			if (delta > 0) {
				sa.scrollUp();
			} else {
				sa.scrollDown();
			}
			if (event.preventDefault) {
				event.preventDefault();
			}
			event.returnValue = false;
		}
	}
}

function VSA_handleSelectStart()
{
	event.returnValue = false;
}

function VSA_handleScrollbarClick(evt)
{
	var sa = VSA_scrollAreas[this.index];
	var offsetY = (document.all ? event.offsetY : evt.layerY);

	if (offsetY < (sa.scrollButtonHeight + sa.scrollslider.offsetHeight/2))
		sa.scrollslider.style.top = sa.scrollButtonHeight + "px";
	else if (offsetY > (sa.scrollbar.offsetHeight - sa.scrollButtonHeight - sa.scrollslider.offsetHeight))
		sa.scrollslider.style.top = sa.scrollbar.offsetHeight - sa.scrollButtonHeight - sa.scrollslider.offsetHeight + "px";
	else
	{
		sa.scrollslider.style.top = offsetY + sa.scrollButtonHeight - sa.scrollslider.offsetHeight/2 + "px";
	}
	sa.scrollIt();
}

function VSA_handleOnScroll()
{
	//event.srcElement.doScroll("pageUp");
}

//--- common functions ----

function VSA_getElements(attrValue, tagName, ownerNode, attrName) //get Elements By Attribute Name
{
	if (!tagName) tagName = "*";
	if (!ownerNode) ownerNode = document;
	if (!attrName) attrName = "name";
	var result = [];
	var nl = ownerNode.getElementsByTagName(tagName);
	for (var i=0; i<nl.length; i++)
	{
	//	if (nl.item(i).getAttribute(attrName) == attrValue)
//		result.push(nl.item(i));
		if (nl.item(i).className.indexOf(attrValue) != -1)
		result.push(nl.item(i));
	}
	return result;
}

function getRealTop(obj) {
	var posTop = 0;
	while (obj.offsetParent) {
		posTop += obj.offsetTop;
		obj = obj.offsetParent;
	}
	return posTop;
}