// JavaScript Document
// from http://www.sitepoint.com/article/perfect-pop-up/2
var newWin = null; 
function popUp(strURL, strType, strHeight, strWidth) { 
 if (newWin != null && !newWin.closed) 
   newWin.close(); 
 var strOptions=""; 
 if (strType=="") 
   strOptions="resizable=yes, scrollbars=yes, height="+ 
     strHeight+",width="+strWidth; 
 if (strType=="history") 
   strOptions="resizable=no, scrollbars=yes,height="+ 
     strHeight+",width="+strWidth; 
 newWin = window.open(strURL, 'newWin', strOptions); 
 newWin.focus(); 
}
function closeWindow() {
	if (window.opener) {
		self.close();
	}
}