function leftmenu(obj){
	var mid;
	var hid;
	var sid;
	var menuid=document.getElementById(obj).getElementsByTagName("h5");
	var theli=document.getElementById(obj).getElementsByTagName("li");
	for(var i=0;i<menuid.length;i++){
		menuid[i].parentElement.getElementsByTagName("ul")[0].className = "displaynone";
		menuid[i].onclick=function(){
			var h5s=document.getElementById("menu").getElementsByTagName("h5");
			for(var i=0;i<h5s.length;i++){
				h5s[i].parentElement.getElementsByTagName("ul")[0].className = "displaynone";				
			}
			
			
			var tul = this.parentElement.getElementsByTagName("ul")[0];
			if(tul.className=="displayblock"){
				this.className = "up";
				tul.className = "displaynone";
			}else{
				this.className = "down";
				tul.className = "displayblock";
			}
			if(mid){
				if(mid!=tul){
					hid.className = "up";
					mid.className = "displaynone";
				}
			}
			hid = this;
			mid = tul;
		
			

		}
	}	
	for(var i=0;i<theli.length;i++){
		theli[i].rel = i;
		theli[i].onclick=function(){
			var num=Number(this.rel);	
			if(sid){
				sid.className="";
			}
			this.className="select";
			sid = theli[num];
		}
	}
}

/*
  *javascript获得页面传过来的参数  
  *paramName 参数名称
  *Author hanweizhao
  */
function getUrlParam( paramName )
{
 var oRegex = new RegExp( '[\?&]' + paramName + '=([^&]+)', 'i' ) ;
 var oMatch = oRegex.exec( window.top.location.search ) ;
 if ( oMatch && oMatch.length > 1 )
  return unescape( oMatch[1] ) ;
 else
  return '' ;
}

function test(){	
	var pam = ""+getUrlParam("tab");

	
	if (pam.length>0){
		var menuid=document.getElementById("tab"+pam);
		menuid.parentElement.getElementsByTagName("ul")[0].className = "displayblock";
		
	}
	
}