CmdUtils.CreateCommand({
  names: ["validate"],
  homepage: "http://joshhuckabee.com/",
  author: { name: "Josh Huckabee", email: "joshhuckabee@gmail.com"},
  contributors: ["Josh Huckabee"],
  license: "MPL",

  preview: function( pblock ) {
    pblock.innerHTML = 'Validate the markup of this web page';
  },

  execute: function() {
    var doc =  Application.activeWindow.activeTab.document;
    var validatorURL = "http://validator.w3.org/check?uri=" + doc.location;
    Utils.openUrlInBrowser(validatorURL);
  }
});