Htk.ColumnRadio = new Class ({ Extends: Htk.Column ,Tag: 'htk-column-radio' ,Properties: { param: { type: Vn.Param ,set: function (x) { this.radioGroup.master = x; } } } ,initialize: function (props) { this.parent (props); this.radioGroup = new Htk.RadioGroup (); } ,render: function (tr) { var td = this.parent (tr); var radio = this.radioGroup.createButton (this.value); td.appendChild (radio); return td; } ,clear: function () { this.radioGroup.clear (); } });