docs: function popupClick(e) {
  
      var editor = this,
          popup = e.data.popup,
          target = e.target;
  
      // Check for message and prompt popups
      if (popup === popups.msg || $(popup).hasClass(PROMPT_CLASS))
        return;
  
      // Get the button info
      var buttonDiv = $.data(popup, BUTTON),
          buttonName = $.data(buttonDiv, BUTTON_NAME),
          button = buttons[buttonName],
          command = button.command,
          value,
          useCSS = editor.options.useCSS;
  
      // Get the command value
      if (buttonName == "font")
        // Opera returns the fontfamily wrapped in quotes
        value = target.style.fontFamily.replace(/"/g, "");
      else if (buttonName == "size") {
        if (target.tagName == "DIV")
          target = target.children[0];
        value = target.innerHTML;
      }
      else if (buttonName == "style")
        value = "<" + target.tagName + ">";
      else if (buttonName == "color")
        value = hex(target.style.backgroundColor);
      else if (buttonName == "highlight") {
        value = hex(target.style.backgroundColor);
        if (ie) command = 'backcolor';
        else useCSS = true;
      }
  
      // Fire the popupClick event
      var data = {
        editor: editor,
        button: buttonDiv,
        buttonName: buttonName,
        popup: popup,
        popupName: button.popupName,
        command: command,
        value: value,
        useCSS: useCSS
      };
  
      if (button.popupClick && button.popupClick(e, data) === false)
        return;
  
      // Execute the command
      if (data.command && !execCommand(editor, data.command, data.value, data.useCSS, buttonDiv))
        return false;
  
      // Hide the popup and focus the editor
      hidePopups();
      focus(editor);
  
    }