var ImageApear=true;

function PrintWindow() {
	if (document.getElementById) { // DOM3 = IE5, NS6
		this.style.visibility = 'hidden';
	}
	else 
	{
		if (document.layers) { // Netscape 4
			this.visibility = 'hidden';
		}
		else { // IE 4
				this.style.visibility = 'hidden';
			}
	}
	window.print();
}
function toggleLayer( whichLayer )
{
  var elem, vis;
  elem=document.getElementsByTagName('print_label');
  vis = elem.style;
  // if the style.display value is blank we try to figure it out here
  if(vis.display==''&&elem.offsetWidth!=undefined&&elem.offsetHeight!=undefined)
    vis.display = (elem.offsetWidth!=0&&elem.offsetHeight!=0)?'block':'none';
  vis.display = (vis.display==''||vis.display=='block')?'none':'block';
}
function switchBackground() {

	myDiv = document.getElementById("topic1");

	if (myDiv.style.backgroundColor != "black") 
	{
		myDiv.style.backgroundColor = "black";
	} 
	else 
	{
		myDiv.style.backgroundColor = "white";
	}
}