function pop(url,window_name,w,h,scroll)
{
	window_settings	= "left="+(screen.width-w)/2+",top="+(screen.height-h)/2+",toolbar=0,scrollbars="+scroll+",status=0,width="+w+",height="+h;
	
	new_window		= window.open(url,window_name,window_settings);
	new_window.focus()
	
	return false
}