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";
 }
}