function doNothing(){}
 var winHandle=null
function displayImage(title, picName,  windowName, windowWidth, windowHeight, windowTop, windowLeft){
 if(winHandle != null){winHandle.close();}
 winHandle = window.open("" ,windowName,"toolbar=no,scrollbars=no,resizable=no,width=" + windowWidth + ",height=" + windowHeight+",top=" +windowTop +",left=" +windowLeft)
  browName = navigator.appName;
  if(winHandle != null)
	  if (browName == "Netscape"){
    var htmlString = "<html><head><title>" + title + "</title>"
	htmlString += "</he"+"ad>"
htmlString += "<body background=" + picName + " bgcolor=black>"
    htmlString += "</body></html>"
    winHandle.document.open()
    winHandle.document.write(htmlString)
    winHandle.document.close()
    }	
      else{
    var htmlString = "<html><head><title>" + title + "</title>"
htmlString += " <style >#layer { position: absolute; top: 0px; left: 0px; visibility: visible }</style></head>"
htmlString += "<body bgcolor=black>"
htmlString += "<div ID='layer'>"
htmlString += "<img src=" + picName + ">"
    htmlString += "</div></body></html>"
    winHandle.document.open()
    winHandle.document.write(htmlString)
    winHandle.document.close()
    }	
  if(winHandle != null) winHandle.focus() //brings window to top
  return winHandle
  }