var pos = window.document.URL.indexOf("gallery");

if (pos > 0 && SM) {
        var thisURL = window.document.URL ;
	SM.buttons.FacebookButton = new YAHOO.widget.Button({
		id: 'Share on Facebook',
		label: 'Share on Facebook',
		container: 'altViews',
		type: 'link',
		href: 'http://www.facebook.com/share.php?u='+thisURL+'&t=Facebook+sucks+because+it+ignores+this',
		target: '_blank',
		className: 'sm-button sm-button-small shareButton glyphButton menuButton share_button'
	});

}