function popinfo(URL,width,height,scroll)
{
	var day = new Date();
	var centerX=(screen.width-width)/2;
	var centerY=(screen.height-height)/2;
	var canScroll=scroll || 0;

	window.open(URL, 'popup', 'top='+centerY+',screenY='+centerY+',left='+centerX+',screenX='+centerX+',toolbar=0,scrollbars='+canScroll+',location=0,statusbar=0,menubar=0,resizable=0,width='+width+',height='+height);
}