// JavaScript Document

var ex_item=0;
var openitem=0;
var picnum=0;
function fnDispItem(active1)  {  
            
			if (ex_item==0){
				ex_item=active1;
				document.getElementById("item_"+active1).style.display="block" ;
				openitem=1;
			}
			else if (active1==ex_item){
				if (openitem==0){
					document.getElementById("item_"+active1).style.display="block" ;
					openitem=1;
				}
				else {
					document.getElementById("item_"+active1).style.display="none" ;
					openitem=0;
				}
			}
			else{		
				document.getElementById("item_"+active1).style.display="block" ;
				document.getElementById("item_"+ex_item).style.display="none" ;
				ex_item=active1;
				openitem=1;
			}
}
function fnDispTree(active)  {
	if (document.getElementById("item_"+active).style.display=='none'){
		document.getElementById("item_"+active).style.display='block';
	}else{
		document.getElementById("item_"+active).style.display='none';
	}
}
function fnHide(active){
		document.getElementById("item_"+active).style.display='none';
		openitem=0;
		ex_item=0;
}



function whichItem(){
    picnum=Math.floor(Math.random()*6)+1
    fnDispItem(picnum);
   
}