add: return false; 
context:   input: function(element) {    switch (element.type.toLowerCase()) {      case 'hidden':      case 'text':        return Form.Element.Serializers.textarea(element);      case 'checkbox':        case 'radio':        return Form.Element.Serializers.inputSelector(element);    }  },
meta: 1434	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/1434/ce59719a389fe9057004f655640d3cfff0df7ab8/prototype.js/clean/public/javascripts/prototype.js