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validate combo boxes


wagga2650

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Hi I have this script that I want to add a 2nd combo box and have it validate them. Can someone show me how to do it please.

Here is the script below and thanks in advance for any suggestions

 

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
  <HEAD>
    <TITLE>ComboBox Validation</TITLE>

    <script Language="JavaScript">
      function validateR(){
        var selectedCombobox=(comboForm.technology.value);
        if (selectedCombobox=="-1") {
          alert("Please Select Technology");
          return false;
        }
        return true;
      }
    </script>

  
</HEAD>

<BODY>
  <form name="comboForm">
    <select name="technology">
      <option value="-1">Select</option>
      <option value="JSP">Java Server Pages</option>
      <option value="Servlet">Servlet</option>
      <option value="PHP">PHP</option>
      <option value="ASP">ASP</option>
    </select>

    <input type="submit" value="submit" onclick="return validateR();">
  </form>
  
</BODY>
</HTML>

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