loadWidget: function(tab, body, widget_name) {
    var params = KALIVO.global_params;
    params.id = widget_name;
    new Ajax.Request('/portals/widget', {
      evalScripts:true, asynchronous:true,
      parameters: params,
      onComplete: function(response) {
        body.innerHTML = response.responseText;
        Project.loading[tab] = false;
        response.responseText.evalScripts();
      }
    });
  },