sminnee / silverstripe-framework

	 *

	 * @return $this

	 */

	public function addExtraClass($class) {

		$classes = preg_split('/\s+/', $class);

		foreach ($classes as $class) {

			$this->extraClasses[$class] = $class;

		}

		return $this;

	}

	/**

	 * Remove one or more CSS-classes from the FormField container.

	 *

	 * @return $this

	 */

	public function removeExtraClass($class) {

		$classes = preg_split('/\s+/', $class);

		foreach ($classes as $class) {

			unset($this->extraClasses[$class]);

		}

		return $this;

	}

	/**

	 * Set an HTML attribute on the field element, mostly an <input> tag.

	 *                names delimited by a single space.

	 * @return $this

	 */

	public function addExtraClass($class) {

		//split at white space

		$classes = preg_split('/\s+/', $class);

		foreach($classes as $class) {

			//add classes one by one

			$this->extraClasses[$class] = $class;

		}

		return $this;

	}

	/**

	 * Remove a CSS-class from the form-container. Multiple class names can

	 * @param string $class

	 * @return $this

	 */

	public function removeExtraClass($class) {

		//split at white space

		$classes = preg_split('/\s+/', $class);

		foreach ($classes as $class) {

			//unset one by one

			unset($this->extraClasses[$class]);

		}

		return $this;

	}

	public function debug() {

		$result = "<h3>$this->class</h3><ul>";