function alertMode()
{
	var hrefName = window.location.href.toLowerCase();

	if((hrefName.indexOf("/default.aspx")>0)||(hrefName=="http://www.zhongwenlink.com/"))
	{
		createBgDiv();
		createMsgDiv();
		document.body.appendChild(bgDiv);
		document.body.appendChild(msgDiv);
		msgDiv.style.display = "block";
	}
}

//创建背景层
function createBgDiv()
{ 
   //当前页面宽
   var sWidth =(isNS)? window.innerWidth-5 : document.body.clientWidth;
   //当前页面高
   var sHeight=(isNS)? window.innerHeight : document.body.clientHeight;

   bgDiv=document.createElement("div");
   bgDiv.setAttribute('id','bgDiv');
   bgDiv.style.position="absolute";
   bgDiv.style.top="0";
   bgDiv.style.background="#777";
   bgDiv.style.filter="alpha(opacity=50)"; 
   bgDiv.style.opacity = 50/100;
   bgDiv.style.left="0";
   bgDiv.style.width=sWidth + "px";
   bgDiv.style.height=sHeight + "px";
   bgDiv.style.zIndex = "10000";
}

//创建消息主窗体
function createMsgDiv()
{
	msgDiv=document.createElement("div");
	msgDiv.setAttribute("id","msgDiv");
	msgDiv.style.position = "absolute";
	msgDiv.style.background = "#FFFFFF";
	msgDiv.style.width = "400px";
	msgDiv.style.border = "5px solid #72A9CF";
	msgDiv.style.paddingLeft = "13px";
	msgDiv.style.paddingRight = "13px";
	msgDiv.style.paddingTop = "3px";
	msgDiv.style.paddingBottom = "3px";
	msgDiv.style.text = "center";
	msgDiv.style.fontSize = "14px";
	msgDiv.style.color = "#999999";
	msgDiv.style.lineHeight = "20px";
	msgDiv.style.top = "50%";
	msgDiv.style.left = "50%";
	msgDiv.style.marginLeft = "-240px" ;
	msgDiv.style.marginTop = -200+document.documentElement.scrollTop+"px";
	msgDiv.style.zIndex = "10001";
	msgDiv.innerHTML += "<div style='float:left'>中文一网打尽:</div>";
	msgDiv.innerHTML += "<div align='right' style='float:right;padding-right:3px;'><a href='javascript:closeAll();'><img src='/images/img_close.gif' border='0' width='9' height='9'></a></div>";
	msgDiv.innerHTML += "<br><br><div style=\"color:red;line-height:30px;font-weight:bold;\">　　中文一网打尽呼吁海外华人为四川震灾区爱心捐款</div>";
	//msgDiv.innerHTML += "<div style=\"color:red;line-height:30px;font-weight:bold;\">2) 4月24日芝加哥华人大游行集会最新报道。</div>";
	msgDiv.innerHTML += "<br><div style=\"width:100%;text-align:center;\"><input type=\"button\" value=\"我很关注\" onClick=\"javascript:location.href='http://bbs.zhongwenlink.com/showtopic-550.aspx';\" >　<input type=\"button\" value=\"暂时不关注\" onClick=\"javascript:closeAll();\" ></div><br/>";
}

//关闭窗口
function closeAll()
{
   document.body.removeChild(bgDiv);
   document.body.removeChild(msgDiv);
}

var isNS=(document.layers);
var bgDiv,msgDiv;