var popUpWin=0;

function popUpWindow(URLStr, left, top, width, height)

{

	if(popUpWin)
	
	{

		if(!popUpWin.closed) popUpWin.close();
	
	}
	
	popUpWin = open(URLStr, 'popUpWin', 'scrollbars=yes,toolbar=no,location=no,directories=no,status=no,menub ar=no,resizable=no,copyhistory=yes,width='+width+',height='+height+',left='+left+', top='+top+',screenX='+left+',screenY='+top+'');

}

function changeurl(URL) {

	location = URL;

}