function initTabs() {
	var blocks = document.getElementsByTagName("div");
	for(i = 0; i < blocks.length; i++)
	{
		if (blocks[i].className.indexOf("tabset") != -1)
		{
			var tabs = [];
			var links = blocks[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";
						if (!links[j]._loaded && links[j].rel)
						{
							links[j]._loaded = true;
							getHttpRequest("inc/"+links[j].rel, null, "initTabs()");
						}
					}
					else {
						c.style.display = "none";
					}

					links[j].onclick = function ()
					{
						if (!this._loaded && this.rel)
						{
							this._loaded = true;
							getHttpRequest("inc/"+this.rel, null, "initTabs()");
						}
						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";
							return false;
						}
					}
				}
			}
		}
	}
}

if (window.addEventListener){
	window.addEventListener("load", initTabs, false);
}
else if (window.attachEvent){
	window.attachEvent("onload", initTabs);
}