// This function adds a plugin
function use_plugin ($name) {
- include ('../plugins/'.$name.'/setup.php');
- $function = 'squirrelmail_plugin_init_'.$name;
- $function();
+ if (file_exists('../plugins/'.$name.'/setup.php')) {
+ include ('../plugins/'.$name.'/setup.php');
+ $function = 'squirrelmail_plugin_init_'.$name;
+ $function();
+ }
}
// This function executes a hook