Fixed a bug in graphical true / false list icon implementation.

Author: tbrehm

interface/lib/classes/listform_actions.inc.php

@@ -96,9 +96,9 @@ public function prepareDataRow($rec)
 		foreach($app->listform->listDef['item'] as $field) {
 			$key = $field['field'];
 			if(isset($field['formtype']) && $field['formtype'] == 'SELECT') {
-				if($rec[$key] == 'y' or $rec[$key] == 'n') {
+				if(strtolower($rec[$key]) == 'y' or strtolower($rec[$key]) == 'n') {
 					// Set a additional image variable for bolean fields
-					$rec['_'.$key.'_'] = ($rec[$key] == 'y')?'list_icon_true.png':'list_icon_false.png';
+					$rec['_'.$key.'_'] = (strtolower($rec[$key]) == 'y')?'list_icon_true.png':'list_icon_false.png';
 				}
 				//* substitute value for select field
 				$rec[$key] = @$field['value'][$rec[$key]];