var noun_type_xab = {
  _name: "xab name",

  // Returns all tabs from all windows.
  getTabs: function(){
    var tabs = {};

    for( var j=0; j < Application.windows.length; j++ ) {
      var window = Application.windows[j];
      for (var i = 0; i < window.tabs.length; i++) {
        var tab = window.tabs[i];
        tabs[tab.document.title] = tab;
      }
    }

    return tabs;
  },

  suggest: function( text, html ) {

    var suggestions  = [];
    var tabs = noun_type_tab.getTabs();

    //TODO: implement a better match algorithm
    for ( var tabName in tabs ) {
     if (tabName.match(text, "i"))
  suggestions.push( CmdUtils.makeSugg(tabName) );
    }

    // Return a list of input objects, limited to at most five:
    return suggestions.splice(0,5);
  }
}

CmdUtils.CreateCommand({
  name: "xab",
  takes: {"xab name": noun_type_xab},

  execute: function( directObj ) {
    var tabName = directObj.text;
    var tabs = noun_type_tab.getTabs();
    CmdUtils.setSelection(tabName);
  //  tabs[tabName]._window.focus();
  //  tabs[tabName].focus();
  },

  preview: function( pblock, directObj ) {
    var tabName = directObj.text;
    if( tabName.length > 1 ){
        var msg = "Changes to <b style=\"color:yellow\">%s</b> tab.";
        pblock.innerHTML = msg.replace(/%s/, tabName);
     }
    else
      pblock.innerHTML = "Make a macbay link of the tab.";
  }
})