function popup(theURL,wWidth,wHeight) {

	var settings = "status=yes,scrollbars=no,menubar=no,resizable=yes,toolbar=no,location=yes,directory=yes";

	if(!wWidth&&!wHeight){
		window.open(theURL,'',''+settings+'');
	}else if(wWidth&&!wHeight){
		window.open(theURL,'',''+settings+',width='+wWidth+'');
	}else if(!wWidth&&wHeight){
		window.open(theURL,'',''+settings+',height='+wHeight+'');
	}else{
		window.open(theURL,'',''+settings+',width='+wWidth+',height='+wHeight+'');
	}
}