/**
  * get_date_format_dropdown function
  *
  * @return string
  **/
 function get_date_format_dropdown($view = null)
 {
     $formats = array('def' => __('Default (d/m/yyyy)', AI1EC_PLUGIN_NAME), 'us' => __('US (m/d/yyyy)', AI1EC_PLUGIN_NAME), 'iso' => __('ISO 8601 (yyyy-m-d)', AI1EC_PLUGIN_NAME), 'dot' => __('Dotted (m.d.yyyy)', AI1EC_PLUGIN_NAME));
     $patterns = Ai1ec_Time_Utility::get_date_patterns();
     $html = '<select name="input_date_format" id="input_date_format">';
     foreach ($formats as $key => $label) {
         $html .= '<option value="' . $key . '"';
         $html .= ' data-pattern="' . $patterns[$key] . '"';
         if ($view == $key) {
             $html .= ' selected="selected"';
         }
         $html .= '>' . $label . '</option>';
     }
     $html .= '</select>';
     return $html;
 }