var popUpWin=0;

function openPopUp(URLStr, left, top, width, height){
	var URLStr1 =URLStr.substring(3, URLStr.length);

    if(popUpWin){
    	if(!popUpWin.closed) popUpWin.close();
  	}
  	popUpWin = open(URLStr1, 'RipleyWin', 'width='+width+',height='+height+',left='+left+', top='+top+',screenX='+left+'screenY='+top+', scrollbars=yes');
}