// AJAX类
function AJAXRequest() {
	var xmlObj;
	try { xmlObj=new XMLHttpRequest; }
	catch(e) {
		try { xmlObj=new ActiveXObject("MSXML2.XMLHTTP"); }
		catch(e2) {
			try { xmlObj=new ActiveXObject("Microsoft.XMLHTTP"); }
			catch(e3) { xmlObj=false; }
		}
	}
	return xmlObj
}	

//ajax请求
var regetext="";
var ajax_keyhref=""
function getRequest() {
	var newmxlobj=AJAXRequest()    // 创建AJAX对象
	if (!newmxlobj) return false;
	newmxlobj.open ("GET",ajax_keyhref, true);
	newmxlobj.onreadystatechange=function() {// 设置回调函数，输出响应内容
			if(newmxlobj.readyState==4 && newmxlobj.status==200) {
				regetext=unescape(newmxlobj.responseText);
			}
			else{}
	}
	newmxlobj.send(null);   // 发送请求
}

//ajax请求提示框内容
var puptxt,showtime
function showad(pophref){//外调showad(url)
//	alert(pophref)
	ajax_keyhref=pophref+"&a="+new Date().getTime();
	regetext="";
	showtime=0;
	showad_start()
}

var t_showad
function showad_start(){
	puptxt='<div style="position: relative;left:30px; width: 220px; height: 20px; border:1px #aad solid;padding:0;margin:0;line-height:20px" id="show_search"><div style="position: relative; width: 100%; height: 32px; background:url(img/topbg.gif);padding:5px 10px;margin:0;" style="font-size:14px;font-weight:800;" id="show_search_top">	系统提示	<span id="close_bt" style="position: absolute;left:200px ;CURSOR:pointer"onclick="document.getElementById(\'show_search\').parentNode.style.display=\'none\'" title="关闭">X</span></div><div style="position: relative; width: 100%; height: 20px;padding:10px;margin:0;background:#ffffff" id="show_search_title">	<img src="img/ajax-loading.gif" border="0" height="16"> <div style="float:left;font-size:14px;margin-top:-0px;" >搜索中...</div></div></div>'
	showad_do();
	getRequest();
	if (regetext=="" && showtime<10) {showtime++;t_showad=setTimeout("showad_start()",300)}
	else if(regetext!=""){
		clearTimeout(t_showad)
		puptxt=regetext
		showad_do();//执行POP显示
	}
	else alert("访问拥塞，请稍候再搜索，谢谢！")
}

//////////////////////////////////
document.write("<style type='text/css'>");
document.write("#show_list_search {scrollbar-3dlight-color: #acf;scrollbar-highlight-color: #fff;scrollbar-face-color: #E4EDFE;scrollbar-arrow-color: #aaf;scrollbar-shadow-color: #fff;scrollbar-darkshadow-color: #9be;scrollbar-base-color : #E4EDFE;scrollbar-track-color: #E4EDFE; }");
document.write("#show_list_search ul li {LIST-STYLE-TYPE: none;padding:0;margin-left:-40px;border-bottom:1px #999 dashed;height:30px;padding-top:6px}");
document.write("</style>");
document.write("<div id='con' style='position:absolute;left:-1000px;top:-1000px;display:none;border:0px red solid;width:1px;height:1px;padding:0;margin:0'></div>");

function showad_do(){
var showadObj=document.getElementById('con')
showadObj.innerHTML=puptxt
showadObj.style.display=''
showadObj.style.left=(document.documentElement.scrollWidth-showadObj.offsetWidth)/2-10+"px";
var _h=(document.documentElement.scrollHeight-showadObj.offsetHeight)/2-100;
if (_h<110)_h=110;
showadObj.style.top=_h+"px";

}