<!-- hide JS code
function validInput(myform)  // validate user input
{
      var form_name=myform.name; 
      if (isBlank(myform.realname.value))    //  name valid?
          {
            alert("Please enter your name:");
            myform.realname.focus();
            return false;
          }
      if (isBlank(myform.phone.value))    //  name valid?
          {
            alert("Please enter your phone number:");
            myform.phone.focus();
            return false;
          }
      if (isBlank(myform.question.value))    //  name valid?
          {
            alert("Please enter your question:");
            myform.question.focus();
            return false;
          }
     return true;
}


function isBlank(testStr) // check if a field is blank
  {
  if (testStr.length == 0)                     // nothing entered?
    return true
  for (var i = 0; i <= testStr.length-1; i++)  // all spaces?
    if (testStr.charAt(i) != " ")
      return false
  return true
  }

// end JS hide -->