var xmlHttp1 = false;
	try {
	  xmlHttp1 = new ActiveXObject("Msxml2.XMLHTTP");
	} catch (e) {
	  try {
	    xmlHttp1 = new ActiveXObject("Microsoft.XMLHTTP");
	  } catch (e2) {
	    xmlHttp1 = false;
	  }
	}
	if (!xmlHttp1 && typeof XMLHttpRequest != 'undefined') {
	  xmlHttp1 = new XMLHttpRequest();
	}
function top_displayLayer(obj,layerID,divw,divh){

	var dv = document.getElementById(layerID);
	GetCenterXY_Fortop(dv,divw,divh);
	dv.style.display = "";
//	dv.style.background="url(/images/divimg/fd_top.jpg) no-repeat center"
}
function GetCenterXY_Fortop(objdiv,divw,divh){
	x = document.body.scrollLeft;
	y = document.body.scrollTop;
	//获取屏幕宽度	
	availWidth = parseInt(window.screen.availWidth);
	availHeight = parseInt(window.screen.availHeight);
	
	y=(availHeight-180)/2+y-divh/2 ;
	x = (availWidth)/2+x-divw/2 ;
	
	objdiv.style.top = y+'px';
	objdiv.style.left = x+'px';
}
function TopSent(p_url) {	
	showBg();
	var murl="/yh/dl_div.asp?p_url=" + escape(p_url);
		//alert(murl);
		xmlHttp1.open("GET", murl, true);
		xmlHttp1.setRequestHeader("Content-Type","gb2312")
	     	xmlHttp1.onreadystatechange = showTopRes;
		xmlHttp1.send(null);
}
function showTopRes() {
	if (xmlHttp1.readyState == 4) {
    		if(xmlHttp1.status==200) {
    			var str_status=xmlHttp1.responseXML.getElementsByTagName("str_sta")[0].firstChild.data;
    			var str_res=jsXMLDecode(xmlHttp1.responseXML.getElementsByTagName("str_res")[0].firstChild.data);
				var str_chk=xmlHttp1.responseXML.getElementsByTagName("str_chk")[0].firstChild.data;
				var str_sign_url=jsXMLDecode(xmlHttp1.responseXML.getElementsByTagName("str_sign_url")[0].firstChild.data);
				
				str_sign_url
				var str_html='';

				str_html = str_html + '<form name="zcform" method="post" action="http://my.zhulong.com'+str_sign_url+'" style="margin:0 0 0 0;Z-index:100;">';
			/*	str_html = str_html + '<div class="dl_k">';
				str_html = str_html + '<h2>筑龙建材网会员登陆</h2>';
				str_html = str_html + '<div class="dl_username">';
				str_html = str_html + '<label><span>用户名：</span></label>';
				str_html = str_html + '<input type=hidden name="s" value="'+str_status+'">';
				str_html = str_html + '<input type=hidden name="turl" value="'+str_res+'">';
				str_html = str_html + '<input maxlength=20 name=ln id=ln></div>';
				str_html = str_html + '<div class="dl_mima">';
				str_html = str_html + '<span>密&nbsp;&nbsp;码：</span>';
				str_html = str_html + '<input type=password maxlength=15 name=lp id=lp></div>';
				str_html = str_html + '<div class="dl_jzmima"><input type="checkbox" value=" " checked="checked" />';
				str_html = str_html + '记住我的账号</div>';
				str_html = str_html + '<div class="dl_denglu"><input name="submit" type="image" src="http://jc.zhulong.com/images/imagesdl/dl_btn.jpg" /></div>';
				str_html = str_html + '<div class="dl_zhuce">还未注册用户<a href="http://jc.zhulong.com/yh/zc_info.asp">免费注册</a></div></div>';
				str_html = str_html + '</div>';	
			*/	
				str_html = str_html + '<div id="dl_dlceng">';
				str_html = str_html + '<div class="dl_dltop"><h2>筑龙建材网会员登录</h2><div class="dl_dlguanbi"><img src="/images/imagesdl/dl_gbbtn.gif" onclick="javascript:closeBg();document.getElementById(\'divLogin\').style.display=\'none\';" style="cursor:pointer"/></div></div>';
				str_html = str_html + '<div class="dl_dlname"><label>用户名：</label><input maxlength=20 name=ln id=ln><input type=hidden name="s" value="'+str_status+'"><input type=hidden name="turl" value="'+str_res+'"></div>';
				str_html = str_html + '<div class="dl_dlmima"><label>密码：</label><input type=password maxlength=15 name=lp id=lp></div>';
				str_html = str_html + '<div class="dl_dljzmima"><input type="checkbox" value=" " checked="checked" />';
				str_html = str_html + '<span>记住我的账号和密码</span></div>';
				str_html = str_html + '<div class="dl_dlbtn"><input  type="image" src="/images/imagesdl/dl_denglubtn_03.gif" /></div>';
				str_html = str_html + '<div class="dl_hwzhuce">还未注册用户？<a href="http://jc.zhulong.com/yh/zc_info.asp">免费注册>></a></div>';
				str_html = str_html + '</div>';
					str_html = str_html + '</form>'	
			//alert(str_html);
				document.getElementById("topdivtd").innerHTML=str_html;
				//document.getElementById("divLogin").style.display='';
				top_displayLayer(this,'divLogin',370,282);
				//document.getElementById("showsendres").innerHTML="";
				
		} else 
			alert("error:" & xmlHttp1.status);
	}
}
function jsXMLDecode(s) {
	var ts;
	ts=s;
	while(ts.indexOf('&gt;')>0)
		ts=ts.replace('&gt;','>');
		
	while(ts.indexOf('&lt;')>0)
		ts=ts.replace('&lt;','<');


	while(ts.indexOf('&amp;')>0)
		ts=ts.replace('&amp;','&');

	
	while(ts.indexOf("&apos;")>0)
		ts=ts.replace("&apos;","'");

	
	while(ts.indexOf('&quot;')>0)
		ts=ts.replace('&quot;','"');

	return ts;
}