var VSA_scrollAreas = new Array();

var VSA_default_imagesPath = "/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 = 11;
var VSA_default_scrollbarWidth = 20;

var VSA_resizeTimer = 2000;

function initScrollbars()
{
	var scrollElements = _getElements("scrollable", "DIV", document, "class");
	for (var i=0; i<scrollElements.length; i++) {
		VSA_scrollAreas[i] = new ScrollArea(i, scrollElements[i]);
	}
}

function ScrollArea(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.innerHTML = this.element.innerHTML;
	this.scrollContent.style.overflow = "hidden";	

	this.scrollContent.style.width = this.element.offsetWidth + "px";
	this.scrollContent.style.height = this.element.offsetHeight + "px";

	
	this.element.innerHTML = "";
	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;

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

		this.element.addEventListener("DOMMouseScroll", VSA_handleMouseWheel, false);
		window.onresize = VSA_handleResize;
	}
	
	this.createScrollBar();

}

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;
		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;
		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 = 98;
		this.scrollslider.style.textAlign = "center";
		this.scrollslider.innerHTML = '<div id="scrollslider' + this.index + '" style="padding:0;margin:0;"></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 (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)
		{
			posy += document.documentElement.scrollTop;
		}

	var iNewY = posy - sa.iOffsetY - sa.topPosition;
		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)
{
	var sa = VSA_scrollAreas[this.index];
	if (document.all && !window.opera)
	{
		sa.scrollslider.setCapture()
		sa.iOffsetY = event.offsetY;
		sa.scrollslider.onmousemove = VSA_handleMouseMove;
	}
	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);
	}
}

function VSA_handleSliderMouseUp()
{
	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);
		sa.scrollIt();
	}
}

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(evt)
{
	if(!evt) evt = event;
	var sa = VSA_scrollAreas[this.index];
	if (sa.scrollbar == null) return;
	sa.scrolling = true;
	sa.scrollingLimit = sa.wheelSensitivity;
	if ((!window.opera && (evt.wheelDelta > 0 || evt.detail < 0)) || (window.opera && !(evt.wheelDelta > 0 || evt.detail > 0)))
		sa.scrollUp();
	else
		sa.scrollDown();
}

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 _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(elem) {
	var nTop = 0;
	if(elem) {
		do {
			nTop += elem.offsetTop - elem.scrollTop;
			elem = elem.offsetParent;
		}
		while(elem)
	}
	return nTop;
}
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));

					//reset all tabs on start
					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)
						{
							//reset all tabs before change
							for (var i = 0; i < this.tabs.length; i++)
							{
								document.getElementById(this.tabs[i].href.substr(this.tabs[i].href.indexOf("#") + 1)).style.display = "none";
								this.tabs[i].className = this.tabs[i].className.replace("active", "");
							}
							this.className += " active";
							c.style.display = "block";
							VSA_handleResize();
							initVerticalAlign();
							initAccordion();
							return false;
						}
					}
				}
			}
		}
	}
}
function initPage(){
	initScrollbars();
	initSlideShow2();
	var _timer = setTimeout(function(){
		$('.tab-content').css('height','auto');
		initAccordion();
		initCustomGallery();
		var _timer2 = setTimeout(function(){
			initTabs();
			VSA_handleResize();
		},500)
	},1000);
	initVerticalAlign();
}
if (window.addEventListener) window.addEventListener("load", initPage, false);
else if (window.attachEvent) window.attachEvent("onload", initPage);
function initVerticalAlign(){
	$('#main .gallery-column .gallery-hold li span').each(function(){
		if($(this).height()<$(this).parent().height()) {
			$(this).css('marginTop',($(this).parent().height()-$(this).height())/2 + 'px');
		}else{
			$(this).css('marginTop','0');
		}
	});
}
function initSlideShow2(){
	$('#main .text-column .active .thumb-hold li').each(function(){
		$(this).removeClass('selected');
	});
	$('.tab:visible .text-column .active .thumb-hold li').eq(0).addClass('selected');
	$('.tab:visible .text-column .active .thumb-hold li').click(function(){
		var _ind = $('.tab:visible .text-column .active .thumb-hold li').index(this);
		$('.tab:visible .active .gallery-hold li').removeClass('selected');
		$('.tab:visible .active .gallery-hold li').eq(_ind).addClass('selected');
		return false;
	});
}
// tabs accordion width custom scrollbar & lightboxes
function initCustomGallery(){
	$('.tab:visible a.prev-lnk').click(function(){
		if ($(this).parent().hasClass('active')) {
			var _this = $(this).parent().find('li.selected');
			var _ind = $(this).parent().find('li').index(_this);
			var _len = $(this).parent().find('li').length;
			if (_ind>0) _ind--
			else _ind = _len-1;
			$(this).parent().find('li').each(function(){
				$(this).removeClass('selected');
			});
			$(this).parent().find('li').eq(_ind).addClass('selected');
		}
		return false;
	});
	$('.tab:visible a.next-lnk').click(function(){
		if ($(this).parent().hasClass('active')) {
			var _this = $(this).parent().find('li.selected');
			var _ind = $(this).parent().find('li').index(_this);
			var _len = $(this).parent().find('li').length;
			if (_ind<_len-1) _ind++
			else _ind = 0;
			$(this).parent().find('li').each(function(){
				$(this).removeClass('selected');
			});
			$(this).parent().find('li').eq(_ind).addClass('selected');
		}
		return false;
	});
}
function initAccordion(){
	$('a.light').fancybox();
	$('#main .text-column .info-list li').each(function(){
		if(!$(this).hasClass('active')) $(this).find('.acc-body').slideUp();
	});
	$('#main .text-column .acc-head a').click(function(){
		if(!$(this).parent().parent().is('.active')) {
			$('#main .tab:visible .text-column .info-list li').each(function(){
				$(this).removeClass('active');
				$(this).find('.acc-body').slideUp();
			});
			$(this).parent().next('.acc-body').slideDown(function(){
				VSA_handleResize();
			});
			var _parent = $(this).parent().parent();
			_parent.addClass('active');
			var _index = $('.tab:visible .info-list li.li').index(_parent);
			$('.tab:visible .gallery-item').removeClass('active');
			$('.tab:visible .gallery-item').eq(_index).addClass('active');
			initSlideShow2();
		}
		return false;
	});
}
$(document).ready(function(){
	// SHOW CLIPS accordion
	$('ul.video-list li').each(function(){
		if(!$(this).hasClass('active')) $(this).find('.acc-body').slideUp();
	});
	$('ul.video-list li .acc-head a').click(function(){
		if(!$(this).parent().parent().is('.active')) {
			$('ul.video-list li').each(function(){
				$(this).removeClass('active');
				$(this).find('.acc-body').slideUp();
			});
			$(this).parent().next('.acc-body').slideDown(function(){
				initScrollbars();
			});
			$(this).parent().parent().addClass('active');
		}
		return false;
	});
	$('.top-gallery').slideShow({
        	slideEl:'img',
	        linkNext:'a.next',
        	linkPrev:'a.prev',
	        linkPause:false,
        	numElementLink:false,
	        duration:1000,
        	autoSlideShow:false,
	        switchTime:4000,
                autoSlideShow:true,
               	event:'click',
	        currentEl:'#footer span.cur',
        	allEl:'#footer span.all'
	});
});