$.YQL = function(query, callback) {
	if (!query || !callback) {
		throw new Error('$.YQL(): Parameters may be undefined');
	}
	var encodedQuery = encodeURIComponent(query.toLowerCase()),
		url = 'http://query.yahooapis.com/v1/public/yql?q='
			+ encodedQuery + '&format=json&callback=?';
	$.getJSON(url, callback);
};