code: function( element, className ) {
              var oldClasses,
                  newClasses = [],
                  i;
  
              element = $.getElement( element );
              oldClasses = element.className.split( /\s+/ );
              for ( i = 0; i < oldClasses.length; i++ ) {
                  if ( oldClasses[ i ] && oldClasses[ i ] !== className ) {
                      newClasses.push( oldClasses[ i ] );
                  }
              }
              element.className = newClasses.join(' ');
          }
docs: Remove the specified CSS class from the element.
  @function
  @param {Element|String} element
  @param {String} className