function initann()
   {
      var itm;
	  var idroot = "table";
	  var idit = 2;
	  var fnd = true;
      while(fnd = true && idit<=50)
      {
		 idstr = idroot + idit;
		 itm = getItem(idstr);
	     if (!itm)
		    fnd = false;
		 else{
		    itm.style.display = 'none';
			picid = idstr + "img";
			pic = getItem(picid);
			pic.src = "../images/plus3.png";
		}
		 idit++;
      }
   }
	
	function getItem(id)
    {
        var itm = false;
        if(document.getElementById)
            itm = document.getElementById(id);
        else if(document.all)
            itm = document.all[id];
        else if(document.layers)
            itm = document.layers[id];

        return itm;
    }

    function toggleItem(id)
    {
        var pic;
		var picid;
		itm = getItem(id);

        if(!itm)
            return false;

        if(itm.style.display == 'none'){
            itm.style.display = '';
			picid = id + "img";
			pic = getItem(picid);
			pic.src = "../images/minus3.png";
		}
        else{
            itm.style.display = 'none';
			picid = id + "img";
			pic = getItem(picid);
			pic.src = "../images/plus3.png";
		}		
        return false;
    }