var noun_type_color = new CmdUtils.NounType( "color", ["aqua", "black", "blue", "fuchsia", "gray", "green", "lime", "maroon", "navy", "olive", "purple", "red", "silver", "teal", "white", "yellow"], "yellow" )

CmdUtils.CreateCommand({
  name: "high",
  author: {name:"Fernando Takai"},
  license:"GPL",
  icon: "chrome://ubiquity/skin/icons/textfield_rename.png",
  description: "Highlights with one of the 12 valid W3C colors!",
  takes: {"color": noun_type_color},
  preview: function( pblock, input) {
      var color = (input.text ? input.text : "yellow");
      pblock.innerHTML = "Highlights with this <span style='background-color:" + color + "'>color</span>"
  },
  execute: function(input) {
    var sel = context.focusedWindow.getSelection();
    var document = context.focusedWindow.document;

    if (sel.rangeCount >= 1) {
      var range = sel.getRangeAt(0);
      var newNode = document.createElement("span");
      newNode.style.background = (input.text ? input.text : "yellow");
      range.surroundContents(newNode);
    }
  }
});