var popUpWin
	function makePopUpWin(url,H,W)
	{
 		if (!popUpWin || popUpWin.closed)
 		{
   		//popUpWin = eval("window.open(url,'','height=400, width=430, scrollbars=yes,screenX=50,screenY=50,left=50,top=50')")
   		popUpWin = eval("window.open(url,'','height='+H+',width='+W+',innerHeight='+H+',innerWidth='+W+',scrollbars=no,screenX=50,screenY=50,left=50,top=50')")
   		if (!popUpWin.opener)
	 		{
     		popUpWin.opener = window
   		}
 		}
 		else 
		{
   		popUpWin.focus()
 		}
	}

	// This function closes the pop up window.
	function closePopUpWin()
	{
 		if (popUpWin && !popUpWin.closed)
  	popUpWin.close();
	}