var bustcachevar=1 //bust potential caching of external pages after initial request? (1=yes, 0=no)
var loadstatustext="<img src='/cwbbs/inc/ajaxtabs/loading.gif' /> ..."

////NO NEED TO EDIT BELOW////////////////////////
var loadedobjects=""
var defaultcontentarray=new Object()
var bustcacheparameter=""

function ajaxpage(url, containerid){
var page_request = false
if (window.XMLHttpRequest) // if Mozilla, Safari etc
page_request = new XMLHttpRequest()
else if (window.ActiveXObject){ // if IE
try {
page_request = new ActiveXObject("Msxml2.XMLHTTP")
} 
catch (e){
try{
page_request = new ActiveXObject("Microsoft.XMLHTTP")
}
catch (e){}
}
}
else
return false
document.getElementById(containerid).innerHTML=loadstatustext
page_request.onreadystatechange=function(){
loadpage(page_request, containerid)
}
if (bustcachevar) //if bust caching of external page
bustcacheparameter=(url.indexOf("?")!=-1)? "&"+new Date().getTime() : "?"+new Date().getTime()
page_request.open('GET', url+bustcacheparameter, true)
page_request.send(null)
}

function loadpage(page_request, containerid){
if (page_request.readyState == 4 && (page_request.status==200 || window.location.href.indexOf("http")==-1))
{
var obj = document.getElementById(containerid);
filterJS(obj, page_request.responseText, true);
}
}

// AJAX加载的javascript无效，需作处理
function filterJS(obj, html, loadScripts){ 
	obj.innerHTML = html;   
	if(!loadScripts) return;   
	   
	var _parseScripts = function(){   
		var s = obj.getElementsByTagName("script");   
		var docHead = document.getElementsByTagName("head")[0];   
		   
		//   For browsers which discard scripts when inserting innerHTML, extract the scripts using a RegExp   
		if(s.length == 0){   
			var re = /(?:<script.*(?:src=[\"\'](.*)[\"\']).*>.*<\/script>)|(?:<script.*>([\S\s]*?)<\/script>)/ig; // assumes HTML well formed and then loop through it.   
			var match;   
			while(match = re.exec(html)){   
				 var s0 = document.createElement("script");   
				 if (match[1])   
					s0.src = match[1];   
				 else if (match[2])   
					s0.text = match[2];   
				 else  
					  continue;   
				 docHead.appendChild(s0);   
			}   
		}else {   
		  for(var i = 0; i < s.length; i++){   
			 var s0 = document.createElement("script");   
			 s0.type = s[i].type;   
			 if (s[i].text) {   
				s0.text = s[i].text;   
			 } else {   
				s0.src = s[i].src;   
			 }   
			 docHead.appendChild(s0);   
		  }   
		}   
	}   
	// set timeout to give obj opportunity to catch up   
	setTimeout(_parseScripts, 10);   
}