var ajaxcache = new Array();
function createXHR(){
	var xmlHttp;
	if (window.ActiveXObject){
		xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
		return xmlHttp;
	}else if(window.XMLHttpRequest){
		xmlHttp = new XMLHttpRequest();
		return xmlHttp;
	}
	return null;
}

function loadsubc(url,contentid){
	var content = document.getElementById(contentid);
	if (ajaxcache[url] == null){
		var xmlHttp = createXHR();
		xmlHttp.onreadystatechange = function(url){
			if (xmlHttp.readyState == 4){
				if (xmlHttp.status == 200){
					content.innerHTML = xmlHttp.responseText;
					ajaxcache[url] = content.innerHTML;
				}
			}
		}
		xmlHttp.open("GET",url,true);
		xmlHttp.send(null);
	}else{
		content.innerHTML = ajaxcache[url];
	}
}
function showTabs(obj){
	var tabsobj = obj.parentNode.parentNode;
	var liobj = tabsobj.getElementsByTagName("li");
	for (i = 0; i < liobj.length; i++){
		var aobj = liobj[i].getElementsByTagName("a");
		if (aobj[0].className != "" && aobj[0] != obj){
			aobj[0].className = "";
		}
	}
	if (obj.className!="bfocus"){
		obj.className="bfocus";
	}
}