add:  return true; 
context:   button.onfocus = function() {    button.onclick = function() {      // Prepare vars for use in anonymous function.      var button = this;      var action = button.form.action;      var target = button.form.target;      // Redirect form submission      this.form.action = uri;      this.form.target = 'redirect-target';      handler.onsubmit();      // Set iframe handler for later      window.iframeHandler = function (data) {        // Restore form submission        button.form.action = action;        button.form.target = target;        handler.oncomplete(data);      }    }  }
meta: 10881	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10881/7f73c2bfb2ad78e8867ba25c1fb1e6848418f6da/drupal.js/buggy/misc/drupal.js