function PopupFile(page, wX, wY, wWidth, wHeight)
{
  wWidth  -= 10; 
  wHeight -= 20;
  wX = (screen.width  - 760)  / 2;
  wY = (screen.height - 560) / 2;
  if(wX < 0) { wX = 0;  };
  if(wY < 0) { wY = 0; };
  props="left=" +wX+ ",top=" +wY+ ",width=" + wWidth + ",height=" + wHeight + ",toolbar=0,resizable=1,menubar=0,alwaysRaised=1,copyhistory=0";
  NewWindow = 
	wp = window.open('', 'courseWindow', props);
		wp.focus(); 
if (wp != null) {
	if(wp.opener == null) {
		wp.opener = self;
	}}	
   wp.document.location.href = page;	
 };