code: function ( arg ) {
  		var result;
  
  		if ( !arg ) {
  			return;
  		}
  
  		arg = string.trim( arg );
  
  		if ( arg.indexOf( "," ) === -1 ) {
  			result = utility.dom( arg );
  		}
  		else {
  			result = [];
  
  			array.each( string.explode( arg ), function ( query ) {
  				var obj = utility.dom( query );
  
  				if ( obj instanceof Array ) {
  					result = result.concat( obj );
  				}
  				else if ( obj ) {
  					result.push( obj );
  				}
  			});
  		}
  
  		return result;
  	}
docs: Queries the DOM using CSS selectors and returns an Element or Array of Elements
  
  @method $
  @param  {String} arg Comma delimited string of CSS selectors
  @return {Mixed}      Element or Array of Elements