// Application specific Javascript functions

  function checkForm(f)
  {
    //  alert ("Here in checkForm");
    //  alert ("Name=" + f.name);

    /*   To test the chosen option in a Select statement:
              var opt=f.selectname.selectedIndex;
              var field=f.selectname.options[opt].text;
              (Can use value instead of text if the option statements have a value clause)
    */
    if (f.buttonPressed.value=="Cancel") {return true;}
    if (f.buttonPressed.value=="Delete")
    {
      if (confirm("Are you really sure you want to delete this record?"))
      {return true;}
      else {return false;}
    }
    var errMsg="";
    switch (f.name)
    {
      case "contactForm":
        if (empty (f.contactName.value))
        {
           if (errMsg=="")  {f.contactName.focus();}
           errMsg+="Please enter your Name\n";
        }

        if (empty (f.email.value))
        {
           if (errMsg=="")  {f.email.focus();}
           errMsg+="Please enter your  Email Address\n";
        }
        else
        {
          if (!empty (f.email.value) && !checkEmail (f.email.value))
          {
            if (errMsg=="")  {f.email.focus();}
            errMsg+="That Email address is not valid\n";
          }
        }

        if (empty (f.comments.value))
        {
           if (errMsg=="")  {f.comments.focus();}
           errMsg+="Please enter your Message\n";
        }
      break;


      default:
      return true;
    }

    if (errMsg!="")
    {
      alert(errMsg);
      return false;
    }
    else return true;
  }