function formatDate(time){
	var date = new Date((time || "").replace(/-/g,"/"));
		diff = (((new Date()).getTime() - date.getTime()) / 1000),
		day_diff = Math.floor(diff / 86400);
			
	if ( isNaN(day_diff) || day_diff < 0 || day_diff >= 31 )
		return;
		
	return day_diff == 0 && (
			diff < 0 && '30 seconds ago' ||
			diff < 60 && Math.floor( diff ) + " seconds ago" ||
			diff < 120 && "1 minute ago" ||
			diff < 3600 && Math.floor( diff / 60 ) + " minutes ago" ||
			diff < 7200 && "1 hour ago" ||
			diff < 86400 && Math.floor( diff / 3600 ) + " hours ago") ||
		day_diff == 1 && "yesterday" ||
		day_diff < 7 && day_diff + " days ago";
	
}

	jQuery.fn.formatDate = function(){
		return this.each(function(){
			var date = formatDate(this.title);
			if ( date )
				jQuery(this).text( date );
		});
	};