var popUpWin = 0 ;

function popUpWindow(URLStr, left, top, width, height){
	if(popUpWin){
		if(!popUpWin.closed) popUpWin.close();
	}
	  
	popUpWin = open(URLStr, 'popUpWin', 'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbar=no,resizable=no,copyhistory=yes,width='+width+',height='+height+',left='+left+', top='+top+',screenX='+left+',screenY='+top+'');
}

var centeredPopUpWin = 0 ;

function centeredPopUp(URLStr, width, height){
	if(centeredPopUpWin){
		if(!centeredPopUpWin.closed) centeredPopUpWin.close();
	}
	
	var left = (screen.availWidth - width)/2 ;
	var top = (screen.availHeight - height)/2 ;
	
	centeredPopUpWin = open(URLStr, 'centeredPopUpWin', 'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbar=no,resizable=no,copyhistory=yes,width='+width+',height='+height+',left='+left+', top='+top+',screenX='+left+',screenY='+top+'');
}

function centeredPopUpScrollable(URLStr, width, height){
	if(centeredPopUpWin){
		if(!centeredPopUpWin.closed) centeredPopUpWin.close();
	}
	
	var left = (screen.availWidth - width)/2 ;
	var top = (screen.availHeight - height)/2 ;
	
	centeredPopUpWin = open(URLStr, 'centeredPopUpWin', 'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbar=yes,resizable=no,copyhistory=yes,width='+width+',height='+height+',left='+left+', top='+top+',screenX='+left+',screenY='+top+'');
}