function toggleExpand(section){
	
		if(document.getElementById([section]).style.display=='block'){
			document.getElementById([section]).style.display='none';
			document.getElementById([section]).style.height='0';
			document.body.clientHeight='100%';
		}
		else{
			document.getElementById([section]).style.display='block';
			
			 for(var i=1;i<=10;i++)
			  {
				if (section!='layer'+i){
					if (document.getElementById('layer'+i)){
						document.getElementById('layer'+i).style.display='none';
					}
					
				}
			  }
			  
			document.getElementById([section]).style.height='auto';
		}
	}
	
	function MM_findObj(n, d) { //v4.0
	  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
		d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
	  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
	  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
	  if(!x && document.getElementById) x=document.getElementById(n); return x;
	}
	
	function show_hide(obj,action)
	{
	  obj=MM_findObj(obj);
	  action=(action=='show')?"visible":"hidden";
	  if(obj){obj.style.visibility=action};
	}
	
	function hide_all()
	{
	  for(var i=1;i<=50;i++)
	  {
		show_hide("layersub"+i,"hide");
	  }
	}