function initTabs()
{
	var sets = document.getElementsByTagName("div");
	for (var i = 0; i < sets.length; i++)
	{
		if (sets[i].className.indexOf("main-nav") != -1)
		{
			var tabs = [];
			var links = sets[i].getElementsByTagName("a");
			for (var j = 0; j < links.length; j++)
			{
				tabs.push(links[j]);
				links[j].tabs = tabs;
				var c = document.getElementById(links[j].rel.substr(links[j].rel.indexOf("#") + 1));
				//reset all tabs on start
				if (c) if (links[j].className.indexOf("active") != -1) {c.style.display = "block";initScrollbars();}
				else c.style.display = "none";
				links[j].onmouseover = function ()
				{
					var c = document.getElementById(this.rel.substr(this.rel.indexOf("#") + 1));
					if (c)
					{
						//reset all tabs before change
						for (var i = 0; i < this.tabs.length; i++)
						{
							document.getElementById(this.tabs[i].rel.substr(this.tabs[i].rel.indexOf("#") + 1)).style.display = "none";
							this.tabs[i].className = this.tabs[i].className.replace("active", "");
						}
						this.className += " active";
						c.style.display = "block";
						initScrollbars();
						return false;
					}
				}
			}
		}
	}
}
if (window.addEventListener) window.addEventListener("load", initTabs, false);
else if (window.attachEvent) window.attachEvent("onload", initTabs);