code: function(el, oRecord, oColumn, oData) {
          var sValue = lang.isValue(oData) ? oData : "Click";
          //TODO: support YAHOO.widget.Button
          //if(YAHOO.widget.Button) {
  
          //}
          //else {
              el.innerHTML = "<button type=\"button\" class=\""+
                      DT.CLASS_BUTTON + "\">" + sValue + "</button>";
          //}
      }
docs: Formats a BUTTON element.
  
  @method DataTable.formatButton
  @param el {HTMLElement} The element to format with markup.
  @param oRecord {YAHOO.widget.Record} Record instance.
  @param oColumn {YAHOO.widget.Column} Column instance.
  @param oData {Object | Boolean} Data value for the cell. By default, the value
  is what gets written to the BUTTON.
  @static