window.onload=function(){
        CheckIsLogin();
        GetSearchParameters("document");
        document.getElementById("left_3").className = "actived";
        document.getElementById("logoPhoto").src="/images/LOGO_DATA.gif";
    }
    
    function ChangeBG(elem,pic){
        if(elem.id!="left_3")
            elem.style.backgroundImage="url("+pic+")";
    }
    //排序
    function Filter(filterField) {
        var url="";
        url=window.location.href;
        if(url.indexOf("?") > 0){
	        if(url.indexOf("?free=") > 0){
	            url = url.substring(0,url.indexOf("?free="));
	            window.location.href = url + "?free=" + filterField;
	        }
	        else {
	            if(url.indexOf("&free=") > 0)
		            url=url.substring(0,url.indexOf("&free="));
	            window.location.href = url + "&free=" + filterField;
	        }
        }
        else
	        window.location.href = url + "?free=" + filterField;
    }
    
        function showDivClassify(_this,parentId,parentName){
       var url="/ajax/GetDocClassify.aspx?parentId="+parentId;
       var obj=_this;
       var top=0;
       var tmp="";
       while (eval("obj"+tmp).id != 'Div1') {
	       top+=eval("obj" + tmp).offsetTop;
	       tmp+=".offsetParent";
	   }
	   top=top+15;
       var req=null;
       if (window.XMLHttpRequest){
           req=new XMLHttpRequest();
       } else if (window.ActiveXObject){
           req=new ActiveXObject("Microsoft.XMLHTTP");
       }
       if(req){
           req.onreadystatechange=function(){
               bindSon(req,_this,top,parentId,parentName);
           }
           req.open("GET",url,true);
           req.send(null);
       }
   }
   
   function bindSon(req,_this,top,parentId,parentName){
       var ready=req.readyState;
       if (ready==4){
           var httpStatus=req.status;
           if(httpStatus==200 || httpStatus==0){
               var resp=req.responseText;
               var func = new Function("return " + resp); 
               var json = func();
               var divSon=document.getElementById("divSonClassify1");
               divSon.innerHTML="";
               var p=document.createElement("p");
               p.style.marginTop="10px";
               p.style.marginBottom="5px";
               p.style.fontSize="14px";
               p.style.fontWeight="bold";
               var a1=document.createElement("a");
               a1.href="/DataList.aspx?classId="+parentId;
               a1.innerHTML=parentName;
               p.appendChild(a1);
               divSon.appendChild(p);
               var ul=document.createElement("ul");
			   for(i=0;i<json.count-1;i++){
                    var li=document.createElement("li");
                    var a=document.createElement("a");
                    a.href="/DataList.aspx?classId="+json.items[i].id;
                    a.innerHTML=json.items[i].name;
                    li.className="li1";
                    li.appendChild(a);
                    ul.appendChild(li);
			   }
			   divSon.appendChild(ul);
			   divSon.style.display="block";
			   divSon.style.top=top+"px";
			   divSon.onmouseover=function(){this.style.display="block";}
	           divSon.onmouseout=function(){this.style.display="none";}
	           _this.onmouseout=function(){divSon.style.display="none";}
           }
       }
   }
   
   function Hide(elem){
       elem.style.display="none";
   }