function popupWindow(src, _width, _height)
{
	var winl = (screen.width-_width)/2;
	var wint = (screen.height-_height)/2;
	window.open(src, 'popupWindow', 'left='+winl+', top='+wint+',toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=0,width='+_width+',height='+_height);
	return false;
}