DateTextBox prompts invalid message : DateTextBox « 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.form.ValidationTextBox");    
      dojo.require("dijit.form.ComboBox");     
      dojo.require("dojo.data.ItemFileReadStore");
      dojo.require("dijit.form.DateTextBox");      
      dojo.require("dijit.Editor");
    </script>
  </head>
  <body class="tundra">

      <label for="serviceDate">Service Date:</label> 
      <input type="text" id="serviceDate" name="serviceDate" size="10"
        dojoType="dijit.form.DateTextBox"
        required="true"       
        promptMessage="Enter service date."
        invalidMessage="Invalid date." 
        constraints="{min:'2008-03-16'}"
      />
</body>
</html>

29.54.DateTextBox
	29.54.1.	DateTextBox prompts invalid message
	29.54.2.	Min,max, date pattern for DateTextBox
	29.54.3.	Set constraints for dijit.form.DateTextBox
	29.54.4.	Set up dijit.form.DateTextBox
	29.54.5.	Define date pattern for dijit.form.DateTextBox
	29.54.6.	Declare dijit.form.DateTextBox