$(function() {
	$(".nav,").lavaLamp({
	fx: "backout", 
	speed: 700,
	click: function(event, menuItem) {
	return true;
			}
		});
	});

var currentSection = "home-pane";
var tabTag = "-tab";
var paneTag = "-pane";
function ScrollSection(link, scrollArea, offset)
{	if (currentSection == link) {
				return;
		}
		lastSection = currentSection;
		currentSection = link;

		sectionTab = currentSection.split("-")[0] + tabTag;
		document.getElementById(sectionTab).className = 'active';
		if (lastSection) {
		   lastTab = lastSection.split("-")[0] + tabTag;
				document.getElementById(lastTab).className = "inactive";
		}

		theScroll = document.getElementById(scrollArea);
		position = findElementPos(document.getElementById(link));


		if (offset != "") {
				offsetPos = findElementPos(document.getElementById(offset));
				position[0] = position[0] - offsetPos[0];
		}


		scrollStart(theScroll, theScroll.scrollLeft, position[0], "horiz");
		// return false;
}
function ScrollArrow(direction, toolbar, scrollArea, offset) {

		toolbarElem = document.getElementById(toolbar);
		toolbarNames = new Array();

		if (toolbarElem.hasChildNodes())
		{
				var children = toolbarElem.childNodes;
				for (var i = 0; i < children.length; i++) 
				{
						if (toolbarElem.childNodes[i].tagName == "LI") {
								toolbarNames.push(toolbarElem.childNodes[i].id.split("-")[0]);
						}
				}
		}

		for (var i = 0; i < toolbarNames.length; i++) {
				if (toolbarNames[i] == currentSection.split("-")[0]) {
						if (direction == "left") {
								if (i - 1 < 0) {
										gotoTab = toolbarNames[toolbarNames.length - 1];
								} else {
										gotoTab = toolbarNames[i - 1];
								}
						} else {
								if ((i + 1) > (toolbarNames.length - 1)) {
										gotoTab = toolbarNames[0];
								} else {
										gotoTab = toolbarNames[i + 1];
								}
						}
				}
		}


		ScrollSection(gotoTab+paneTag, scrollArea, offset);

}
var scrollanim = {time:0, begin:0, change:0.0, duration:0.0, element:null, timer:null};

function scrollStart(elem, start, end, direction)
{
		if (scrollanim.timer != null) {
				clearInterval(scrollanim.timer);
				scrollanim.timer = null;
		}
		scrollanim.time = 0;
		scrollanim.begin = start;
		scrollanim.change = end - start;
		scrollanim.duration = 25;
		scrollanim.element = elem;

		if (direction == "horiz") {
				scrollanim.timer = setInterval("scrollHorizAnim();", 15);
		}
		else {
				scrollanim.timer = setInterval("scrollVertAnim();", 15);
		}
}
function scrollVertAnim()
{
		if (scrollanim.time > scrollanim.duration) {
				clearInterval(scrollanim.timer);
				scrollanim.timer = null;
		}
		else {
				move = sineInOut(scrollanim.time, scrollanim.begin, scrollanim.change, scrollanim.duration);
				scrollanim.element.scrollTop = move; 
				scrollanim.time++;
		}
}
function scrollHorizAnim()
{
		if (scrollanim.time > scrollanim.duration) {
				clearInterval(scrollanim.timer);
				scrollanim.timer = null;
		}
		else {
				move = sineInOut(scrollanim.time, scrollanim.begin, scrollanim.change, scrollanim.duration);
				scrollanim.element.scrollLeft = move;
				scrollanim.time++;
		}
}
function findElementPos(elemFind)
{
		var elemX = 0;
		var elemY = 0;
		do {
				elemX += elemFind.offsetLeft;
				elemY += elemFind.offsetTop;
		} while ( elemFind = elemFind.offsetParent )

		return Array(elemX, elemY);
}
function sineInOut(t, b, c, d)
{
		return -c/2 * (Math.cos(Math.PI*t/d) - 1) + b;
}