if(typeof(HTMLElement)!="undefined"){  
	  HTMLElement.prototype.contains=function(obj)  
	  {  
		  while(obj!=null&&typeof(obj.tagName)!="undefind"){if(obj==this) return true;obj=obj.parentNode;}
		  return false;  
	  };  
}
function hidePanel(e){
	var hideflag = true;
	if(window.event){
		e = window.event;
		hideflag = document.getElementById('fullsite').contains( e.toElement );
	}else{
		hideflag = document.getElementById('fullsite').contains( e.relatedTarget );
	}
	if(!hideflag){
		document.getElementById('fullsite').style.display = 'none';
	}
}
function zt(a){
	var menu=document.getElementById("zt_"+a);
	for (i=1;i<=2;i++){
	   document.getElementById("zt_"+i).className="";
	}
	menu.className="on";
	var con=document.getElementById("zt_c"+a);
	for (i=1;i<=2;i++){
	   document.getElementById("zt_c"+i).style.display="none";
	}
	con.style.display="block";
}
function zjHover(obj){
	var zj=document.getElementById("zj").getElementsByTagName("li");
	for(i=0;i<zj.length;i++){
	zj.item(i).className="zjoff";
	}
	obj.className="zjon";
}
function by_nv(a){
	var menu=document.getElementById("by_nv_"+a);
	for (i=1;i<=5;i++){
	   document.getElementById("by_nv_"+i).className="";
	}
	menu.className="on";
	var con=document.getElementById("by_con_"+a);
	for (i=1;i<=5;i++){
	   document.getElementById("by_con_"+i).style.display="none";
	}
	con.style.display="block";
}
function flink(a){
	var menu=document.getElementById("flink_"+a);
	for (i=1;i<=2;i++){
	   document.getElementById("flink_"+i).className="";
	}
	menu.className="flink_on";
	var con=document.getElementById("flink_c"+a);
	for (i=1;i<=2;i++){
	   document.getElementById("flink_c"+i).style.display="none";
	}
	con.style.display="block";
}