3889     public function addClass( $className) {  argument
3890         if (! $className)
3893             if (! $this->is(".$className", $node))
3896                     trim($node->getAttribute('class').' '.$className)
3906     public function addClassPHP( $className) {  argument
3910                     ? $classes.' <'.'?php '.$className.' ?'.'>'
3911                     : '<'.'?php '.$className.' ?'.'>';
3919      * @param   string  $className
3922     public function hasClass($className) {  argument
3924             if ( $this->is(".$className", $node))
3934     public function removeClass($className) {  argument
3937             if ( in_array($className, $classes)) {
3938                 $classes = array_diff($classes, array($className));
3952     public function toggleClass($className) {  argument
3954             if ( $this->is( $node, '.'.$className ))
3955                 $this->removeClass($className);
3957                 $this->addClass($className);