function wikilink( sLink)
{
	bExternal = false;
	
	if (
		sLink.match( /http:/i) || sLink.match( /www./i) || sLink.match( /ftp:/i)
		)
	{
		bExternal = true;
	}

	if (bExternal)
	{
		//open as-is in new window
		window.open( sLink);
	}
	else
	{
		//prepend with wiki link
		window.location.href = 'wiki.php?topic=' + sLink;
	}
}