var newWin;

function openWin(url,width,height,options)	{
	if (!newWin || newWin.closed)	{
	if (width==null) width="450"
	if (height==null) height="400"
	options==null ? options="" : options+=","
	newWin=window.open(url,'newWin',"scrollbars=yes,resizable,"+options+"width="+width+",height="+height)
	newWin.focus();
	}
	else	{
	newWin.location = url;
	newWin.focus();
	}
}