// JavaScript Document
var old_item=null;
var old_img=null;
var minus=new Image;
    minus.src="ard/expanded.gif";
function switchm(Menu,imgid)
   {
	 if(document.getElementById(Menu).style.display=="block")
	   { 
	     if(old_item==null)//there is no open menu
		   {  // alert("1:1");
			   document.getElementById(Menu).style.display = 'none';
	           document.images[imgid].src="ard/collapsed.gif"; 
		   }
		   else
		       {//alert("1:2");
				   document.getElementById(old_item).style.display='block';//first expand closed menu
			       document.images[old_img].src="ard/expanded.gif"; 
				   document.getElementById(Menu).style.display = 'none';   //then colpase open menu 
	               document.images[imgid].src="ard/collapsed.gif"; 
			   }
	    }
	else 
	   {  //alert("ss");
	       //if the menu is all closed at first time
		   	if(old_item==null)//there is no open menu
		   {//alert("2:1");
			   document.getElementById(Menu).style.display = 'block';
	           document.images[imgid].src="ard/expanded.gif"; 
		   }
		   else
		       {//alert("2:2");
				   document.getElementById(old_item).style.display='none';//first expand closed menu
			       document.images[old_img].src="ard/collapsed.gif"; 
				   document.getElementById(Menu).style.display = 'block';   //then colpase open menu 
	               document.images[imgid].src="ard/expanded.gif"; 
				   
			   }
	   }
		 old_item=Menu;
		 old_img=imgid;
       
   }
/*
		   document.getElementById(Menu).style.display = 'block';
		   document.images[imgid].src="ard/expanded.gif";
		   if(old_item!=Menu)
			 {
			   document.getElementById(old_item).style.display='none';
			   document.images[old_img].src="ard/collapsed.gif"; 
			    old_item=Menu;
				old_img=imgid;
			 }
			*/