var http_request=false;
if(typeof $=='undefined')$=function(id){
	var element = id;
	if (typeof element == 'string')
		element = document.getElementById(element);
	return element;
};
function send_request1(url){
    http_request=false;
	if(window.XMLHttpRequest){
	    http_request=new XMLHttpRequest();
	    if(http_request.overrideMimeType){
	        http_request.overrideMimeType("text/xml");
	    }
	}
	else if(window.ActiveXObject){
	    try{
	        http_request=new ActiveXObject("Msxml2.XMLHttp");
	    }catch(e){
	        try{
	            http_request=new ActiveXobject("Microsoft.XMLHttp");
	        }catch(e){}
	    }
    }
	if(!http_request){
	    window.alert("创建XMLHttp对象失败！");
	    return false;
	}
	http_request.onreadystatechange=processrequest1;
    http_request.open("GET",url,true);
	http_request.send(null);
}
function processrequest1(){
    if(http_request.readyState==4){
        if(http_request.status==200){
			$("news"+tags).innerHTML=http_request.responseText;
	    }else{
	        alert("您所请求的页面不正常！");
	    }
    }
}
function news(cid,tag){
	$("news"+tag).innerHTML="<table width='100%'><tr><td heigth='150' align='center' style='padding-top:45px;'><img src='img/loading.gif' /><td></tr></table>";
    send_request1("news.php?cid="+cid);
	tags=tag;
}