In order to use Ranking/Sum Check validation, Multi-Control component validation, or other custom client validation,
a survey must have originated from a version 4.7 survey template or the following conditions must be true:

• ClientValidation.js must be included as a survey resource.
• The following javascript code must be included on the Cascading Style Sheet(CSS)/JavaScript page:
  
  

  <script type="text/javascript">
   // Include ClientValidation.js only if the DatStat object is defined
   //
   if (typeof(DatStat) != "undefined")
   {
    document.write('<script type="text/javascript" src="SurveyResource/ClientValidation.js"><\/script>');
   }
  </script>