Adding select instead of input + fixing a PHP warning

main/inc/lib/formvalidator/Rule/CompareFields.php

@@ -12,7 +12,7 @@ class HTML_QuickForm_Compare_Fields extends HTML_QuickForm_Rule_Compare
      * @param   string the value to compare
 	 * @return boolean True if date is valid
 	 */
-	function validate($values, $operator_and_max_value) {
+	function validate($values, $operator_and_max_value = null) {
         if (is_array($values) && !empty($values) && !empty($operator_and_max_value)) {
            $final_value = 0;
            foreach ($values as $value) {

main/inc/lib/grade_model.lib.php

@@ -108,7 +108,8 @@ class GradeModel extends Model {
             
             $form->addElement('text', 'components['.$i.'][prefix]',      null, array('class' => 'span2'));
             $form->addElement('text', 'components['.$i.'][exclusions]',      null, array('class' => 'span2'));
-            $form->addElement('text', 'components['.$i.'][count_elements]',      null, array('class' => 'span2'));
+            $options = array(0=>0, 1 => 1, 2 => 2, 3=>3, 4=> 4, 5=> 5);
+            $form->addElement('select', 'components['.$i.'][count_elements]', null, $options);
             
             $form->addElement('text', 'components['.$i.'][title]',      null, array('class' => 'span2'));