/**
 * @author johnstin
 * @Returns big screenshot by video id
 * $.jYoutube('rSUfWXcNAOw');
 * Returns small thumbnail by YouTube video URL
 * $.jYoutube('http://www.youtube.com/watch?v=rSUfWXcNAOw', 'small');
 */
(function($){
	$.extend({
		jYoutube: function( url, size ){
			if(url === null){ return ""; }

			size = (size === null) ? "big" : size;
			var vid;
			var results;

			results = url.match("[\\?&]v=([^&#]*)");

			vid = ( results === null ) ? url : results[1];

			if(size == "small"){
				return "http://img.youtube.com/vi/"+vid+"/2.jpg";
			}else {
				return "http://img.youtube.com/vi/"+vid+"/0.jpg";
			}
		}
	})
})(jQuery);