var popUpWin=0;
/** Enter width and height of enlarged image **/
function popUpWindow(URLStr, width, height)
{
  if(popUpWin)
  {
    if(!popUpWin.closed) popUpWin.close();
  }
  
  var windowWidth=640;
  var windowHeight=480;
  /*
  if(bName == "Microsoft Internet Explorer"){
  	windowWidth = document.body.clientWidth;
	windowHeight = document.body.clientHeight;
  }
  else{
  	windowWidth = window.innerWidth;
	windowHeight = window.innerHeight;
  }
  */
  
  windowWidth = screen.width;
  windowHeight = screen.height;
    
  var left=0;
  var top=0;
  height = height + 20;
  width = width + 20;
  
  if(windowWidth >= width){
  	left = (windowWidth - width)/2;
  }
  
  if(windowHeight >= height){
  	top = (windowHeight - height)/2;
  }
  
  popUpWin = open(URLStr, 'popUpWin', 'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=no,copyhistory=yes,width='+width+',height='+height+',left='+left+', top='+top+',screenX='+left+',screenY='+top+'');
}