function CallBack_news_detail(xmlhttp)
{
    result1 = xmlhttp.responseText;
    $("news_detail").innerHTML=result1;
	xmlhttp=null;
	result1=null;
	CollectGarbage();
}
function CallAjax_news_detail(id) {
	var rel="id="+id;
	var url='news_detail.php';
	var myAjax = new Ajax.Request(url,{parameters: rel,onSuccess:CallBack_news_detail});
} 
function showdiv(id){
	hiddenscoll();
	hiddenselect();
	openWindows();
	CallAjax_news_detail(id);
	//document.getElementById("bg").style.display='block';
	//document.getElementById("popDiv").style.display='block';
}
function closediv(){
	showscoll();
	showselect();
	//document.getElementById("bg").style.display='none';
	//document.getElementById("popDiv").style.display='none';
}
function hiddenselect(){
	var selects = document.getElementsByTagName('select');
	for(i = 0; i < selects.length; i++) {
		   selects[i].style.visibility="hidden"; 
	}
}
function showselect(){
	var selects = document.getElementsByTagName('select');
	for(i = 0; i < selects.length; i++) {
		   selects[i].style.visibility="visible"; 
	}
}
//隐藏滚动条
function hiddenscoll(){
var temp_h1 = document.body.clientHeight;
var temp_h2 = document.documentElement.clientHeight;
var isXhtml = (temp_h2<=temp_h1&&temp_h2!=0)?true:false; 
var htmlbody = isXhtml?document.documentElement:document.body;
var newdivs = false;
	if (newdivs){
		newdivs = false;
		htmlbody.style.overflow = "auto";
	}else{
		newdivs = true;
		htmlbody.style.overflow = "hidden";
	}
}
//显示滚动条
function showscoll(){
var temp_h1 = document.body.clientHeight;
var temp_h2 = document.documentElement.clientHeight;
var isXhtml = (temp_h2<=temp_h1&&temp_h2!=0)?true:false; 
var htmlbody = isXhtml?document.documentElement:document.body;
var newdivs = false;
	if (newdivs){
		newdivs = false;
		htmlbody.style.overflow = "auto";
	}else{
		newdivs = true;
		htmlbody.style.overflow = "auto";
	}
}
//----------------------

function openWindows(){ 
	var width=800;
	var height=700;
	var objWindow = $("WindowDIV"); 
	var objLock = $("LockWindows");
	objLock.style.display="block"; 
	objLock.style.width=document.documentElement.scrollWidth+"px"; 
	objLock.style.height=document.documentElement.scrollHeight+"px"; 
	objLock.style.minWidth=document.documentElement.clientWidth+"px"; 
	objLock.style.minHeight=document.documentElement.clientHeight+"px"; 
	if(width>document.documentElement.clientWidth) width = document.documentElement.clientWidth+"px"; 
	if(height>document.documentElement.clientHeight) height = document.documentElement.clientHeight+"px"; 
	objWindow.style.display='block'; 
	objWindow.style.width = width+"px"; 
	objWindow.style.height = height+"px"; 
	objWindow.style.left=(document.documentElement.clientWidth-width)/2+"px"; 
	objWindow.style.top=(document.documentElement.scrollTop+80)+"px"; 

} 

function hiddenWindows(){ 
	showscoll();
	showselect();
	$("LockWindows").style.display='none'; 
	$("WindowDIV").style.display='none'; 
}