Create a dialog with your code : Dialog « Dojo toolkit « JavaScript Tutorial

<html>
  <head>
    <link rel="StyleSheet" type="text/css"
      href="js/dojo/dijit/themes/tundra/tundra.css">

    <script type="text/javascript">
      var djConfig = {
        baseScriptUri : "js/dojo/",
        parseOnLoad : true
      };
    </script>
    <script type="text/javascript" src="js/dojo/dojo/dojo.js"></script>
    <script>
      dojo.require("dojo.parser");
      dojo.require("dijit.Dialog");
      dojo.addOnLoad(showDialogs);

      function showDialogs() {
        var dlg = new dijit.Dialog();
        dlg.setContent("Content");
        dojo.byId("my").appendChild(dlg.domNode);
        dlg.show();
      }
    </script>
  </head>
  <body class="tundra">
    <div id="my"></div>
  </body>
</html>

29.66.Dialog
	29.66.1.	Create data input dialog
	29.66.2.	Get date from dialog
	29.66.3.	Dialog button action
	29.66.4.	Hide dialog
	29.66.5.	Popup dialog
	29.66.6.	Simple dialog
	29.66.7.	Login dialog
	29.66.8.	Create a dialog declaratively
	29.66.9.	Create a dialog with your code