function validateFormOnSubmit(theForm) {
var reason = "";
var e = theForm.elements;
  //alert(theForm.Email.value);
  reason += validateEmail(theForm.Email);
  
  
  if (reason != "") {
    alert("Some fields need correction:\n" + reason);
    return false;
  }
    if (theForm.CHEVELLE.checked == false &&
    theForm.CUTLASS.checked == false &&
    theForm.LATEMOD.checked == false &&
    theForm.SKYLARK.checked == false &&
    theForm.GTO.checked == false &&
    theForm.CADILLAC.checked == false &&
    theForm.MONTECARLO.checked == false &&
    theForm.RIVIERA.checked == false &&
    theForm.PONTIAC.checked == false
    ) {
        alert ('Please select a Vehicle!');
        return false;
    } else {
        return true;
    }
  return true;
}




function validateEmail(fld) {
    //alert("in validate Email");
    var error="";
    //alert("in validate Email - 2");
    var tfld = fld.value; 
                  // alert("in validate Email - 3");        // value of field with whitespace trimmed off
    var emailFilter = /^[^@]+@[^@.]+\.[^@]*\w\w$/ ;
   // alert("in validate Email - 4");
    var illegalChars= /[\(\)\<\>\,\;\:\\\"\[\]]/ ;
    //alert("in validate Email - 5");
    //alert(fld.value);
    if (fld.value == "") {
        fld.style.background = 'FFFFCC';
        error = "You didn't enter an email address.\n";
    } else if (!emailFilter.test(tfld)) {              //test email for illegal characters
        fld.style.background = 'FFFFCC';
        error = "Please enter a valid email address.\n";
    } else if (fld.value.match(illegalChars)) {
        fld.style.background = 'FFFFCC';
        error = "The email address contains illegal characters.\n";
    } else {
        fld.style.background = 'White';
    }
    return error;
}