jQuery.prototype.meta = function(m) {
	var c = jQuery(this).attr('class');
	if (!c) return false;
	var classes = c.split(" ");
	meta = new Array();
	for (var i=0; i<classes.length; i++) {
		if (classes[i].substring(0,m.length) == m) meta[meta.length] = classes[i].substring(m.length+1,classes[i].length);
	}
	return meta;
}