var tags = new Array('优惠','团购');
var tagBoxWidth="160px";
var tagBoxHeight="160px";

if (document.readyState=="complete"){
	matchTags("content");
	document.getElementById("tagdiv").onmouseleave=function(){
		disableBox();
	};

}else{
	document.onreadystatechange = function()
	{
		if (document.readyState == "complete")
		{
			matchTags("content");
			document.getElementById("tagdiv").onmouseleave=function(){
				disableBox();
			};
		}
	}
}
function matchTags(e){
createTagShowBox(e);
var obj=$(e);
var tmp=obj.innerHTML;
	for(var i=0;i<tags.length;i++){
		tagzz=eval("/"+tags[i]+"/g");     
		tmp=tmp.replace(tagzz,"<a oncontextmenu=\"return false;\"   onmouseover=\"moveTagBox('"+tags[i]+"');\"  onclick=\"clickBox('"+tags[i]+"');\" style=\"color:#3333FF\" >"+tags[i]+"</a>");
	}
  obj.innerHTML=tmp;
}
function $(id){
	return document.getElementById(id);
}
function disableBox(){
	$('tagdiv').style.display="none";
}

function clickBox(x){
	var url="http://www.house365.com/news/get_keyword_ad.php?keyword="+x+"&href=1"
	var _ajax = new ajax()              
	_ajax.method = "get";//是get还是post
	_ajax.url = url; //请求的地址
	_ajax.responsetype = "text";//处理返回内容的类型
	_ajax.content = "keyword=" + x;//发送的内容
	_ajax.getExecObj(function(str){ location.href = str});//对返回值处理  
}
function moveTagBox(keyword){
	$('tagdiv').style.display="block";
	x=document.documentElement.scrollLeft+event.clientX;
	y=document.documentElement.scrollTop+event.clientY;
	$('tagdiv').style.top=y-5+ "px";
	$('tagdiv').style.left=x-10+ "px";
	loadad(keyword);
}

function createTagShowBox(e){
  var tagShowBox=document.createElement("div"); 
  tagShowBox.id="tagdiv";
  tagShowBox.setAttribute("id","tagdiv");
  tagShowBox.style.position="absolute";
  tagShowBox.style.display="none";
  tagShowBox.style.width=tagBoxWidth;
  tagShowBox.style.height=tagBoxHeight;
  tagShowBox.innerHTML="<div style=\"width:150px;height:140px;padding:4px;margin:20px 0 0 10px;border:1px solid #B1B1B4;background:#FFFEFF;\">正在读取数据</div>";
  document.getElementById(e).appendChild(tagShowBox);
}

function loadad(x){ 
	document.getElementById("tagdiv").innerHTML="<div style=\"width:150px;height:140px;padding:4px;margin:10px 0 0 10px;border:1px solid #B1B1B4;background:#FFFEFF;\">正在读取数据</div>";
	var url="http://www.house365.com/news/get_keyword_ad.php?keyword=" + x

 var _ajax = new ajax()              
 _ajax.method = "get";//是get还是post
 _ajax.url = url; //请求的地址
 _ajax.responsetype = "text";//处理返回内容的类型
 _ajax.content = "keyword=" + x;//发送的内容
 _ajax.getExecObj(function(str){document.getElementById("tagdiv").innerHTML = str});//对返回值处理  
} 

function ajax(){
 this.method;
 this.url;
 this.responsetype;
 this.content;
 var http_request = false;
 this.getExecObj = function(reValue){ 
  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XMLHttpRequest对象实例失败.");
   return false;
  }
  
  if(this.method.toLowerCase()=="get") {
   http_request.open(this.method, this.url, true);
  }
  else if(this.method.toLowerCase()=="post") {
   http_request.open(this.method, this.url, true);
   http_request.setRequestHeader("Content-Type","application/x-www-form-urlencoded");
  }
  else {                           
   window.alert("http请求类别参数错误。");
   return false;
  }
  http_request.send(this.content);  
  
  var reTextResponse = function() {
   if (http_request.readyState == 4) {
    if (http_request.status == 200) {   
      reValue(http_request.responseText);       
    } else {
        alert("页面有异常。");
    }
   }
  }  
  var reXMLResponse = function() {
   if (http_request.readyState == 4) {
    if (http_request.status == 200) {   
      reValue(http_request.responseXML);       
    } else {
        alert("页面有异常。");
    }
   }
  }
   
  if(this.responsetype.toLowerCase()=="text") {    
   http_request.onreadystatechange = reTextResponse;
  }
  else if(this.responsetype.toLowerCase()=="xml") {
   http_request.onreadystatechange = reXMLResponse;
  }
  else {
   window.alert("参数错误。");
   return false;
  }
 }  
}