Chained calls are now possible for most framework class setters and methods not returning a value

framework/web/form/CFormStringElement.php

@@ -40,10 +40,12 @@ class CFormStringElement extends CFormElement
 
 	/**
 	 * @param string $value scenario names separated by commas.
+	 * @return CFormStringElement
 	 */
 	public function setOn($value)
 	{
 		$this->_on=preg_split('/[\s,]+/',$value,-1,PREG_SPLIT_NO_EMPTY);
+		return $this;
 	}
 
 	/**