function msover(img,ref)
{
	if(document.images)document.images[img].src=ref;
}
function pop_up(url,width,height,scroll,resizable)
{
	if (window.nw && !window.nw.closed) { window.nw.close(); }
	nw = window.open(url,'nw','width=' + width + ',height=' + height + ',resizable=' +resizable+ ',toolbar=no,scrollbars=' +scroll+ ',menubar=no,status=no' );
	window.nw.focus();
}