function isUrl(url) {
	        if (/<\/?[^>]*>/.test(url))
	            return false;
	        return /^(?:(https|http|ftp|rtsp|mms):)?(\/\/)?(\w+:{0,1}\w*@)?([^\?#:\/]+\.[a-z]+|\d+\.\d+\.\d+\.\d+)?(:[0-9]+)?((?:\.?\/)?([^\?#]*)?(\?[^#]+)?(#.+)?)?$/.test(url);
	    }
Check is url
@param {String} url
@returns {Boolean}