var AwesomePanel = function(aElementId, aCommandId) {
  let command = document.getElementById(aCommandId);

  this.panel = document.getElementById(aElementId),

  this.open = function aw_open() {
    command.setAttribute("checked", "true");
    this.panel.hidden = false;

    if (this.panel.hasAttribute("onshow")) {
      let func = new Function("panel", this.panel.getAttribute("onshow"));
      func.call(this.panel);
    }

    if (this.panel.open)
      this.panel.open();
  },

  this.close = function aw_close() {
    if (this.panel.hasAttribute("onhide")) {
      let func = new Function("panel", this.panel.getAttribute("onhide"));
      func.call(this.panel);
    }

    if (this.panel.close)
      this.panel.close();

    this.panel.hidden = true;
    command.removeAttribute("checked");
  },

  this.doCommand = function aw_doCommand() {
    BrowserUI.doCommand(aCommandId);
  },

  this.openLink = function aw_openLink(aEvent) {
    let item = aEvent.originalTarget;
    let uri = item.getAttribute("url") || item.getAttribute("uri");
    if (uri != "") {
      Browser.selectedBrowser.userTypedValue = uri;
      BrowserUI.goToURI(uri);
    }
  }
};