function menuTree(){
	var str = window.location.href; 
	str=str.substring(str.lastIndexOf("/") + 1) ;
	arr=str.split('.');
	if(arr[0]=='' || arr[0]=='index' || arr[0]=='luckyDraw' || arr[0]=='cataLogList' || arr[0]=='prizeChannel' || arr[0]=='advancedsearch')
		var need='noNeed';
	else{
		menuTree_show(10);
	}	
}
function menuTree_show(time){
	var Maxheight=1078;
	obj=document.getElementById("menuTree");
	allTime=10;
	thisTime=time;
	percent=(allTime-thisTime)/allTime;
	//alert('height='+545*percent+"px");
	obj.style.height=Maxheight*percent+"px";
	obj.style.width=180*percent+"px";
	nextTime=thisTime-1;
	obj.style.display='block';
	xxx = setTimeout("menuTree_show("+nextTime+")",1);
	if(nextTime<0){
		clearTimeout(xxx);
	}
}
function menuTree_hidden(time){
	var Maxheight=1078;
	obj=document.getElementById("menuTree");
	allTime=10;
	thisTime=time;
	percent=(allTime-thisTime)/allTime;
	obj.style.height=Maxheight*(1-percent)+"px";
	obj.style.width=180*(1-percent)+"px";
	//alert('height='+obj.style.height);
	nextTime=thisTime-1;
	xxx = setTimeout("menuTree_hidden("+nextTime+")",1);
	if(nextTime<0){
		clearTimeout(xxx);
		obj.style.display='none';
	}
}