Multiple groups of radio buttons validation

Hi guys,

I have a form with input text, dropdown menu and groups of radio button. The validation for input text and dropdown menu works fine with these js validator -

<script language="JavaScript">
function formValidator(){

// Make quick references to our fields

 var pensyarah = document.getElementById('pensyarah');
 var kksem = document.getElementById('kksem');



 // Check each input in the order that it appears in the form!
if(madeSelection(pensyarah, "Sila pilih Pensyarah")){
 if(madeSelection(kksem, "Sila pilih Kod kursus")){



 return true;
 }
 }


 return false;

}



function isEmpty(elem, helperMsg){
 if(elem.value.length == 0){
  alert(helperMsg);
  elem.focus(); // set the focus to this input
  return true;
 }
 return false;
}

function isNumeric(elem, helperMsg){
 var numericExpression = /^[0-9\\s\\:]+$/;
 if(elem.value.match(numericExpression)){
  return true;
 }else{
  alert(helperMsg);
  elem.focus();
  return false;
 }
}

function isAlphabet(elem, helperMsg){
 var alphaExp = /^[a-zA-Z\\s\\.]+$/;
 if(elem.value.match(alphaExp)){
  return true;
 }else{
  alert(helperMsg);
  elem.focus();
  return false;
 }
}

function isAlphanumeric(elem, helperMsg){
 var alphaExp = /^[0-9a-zA-Z\\s]+$/;
 if(elem.value.match(alphaExp)){
  return true;
 }else{
  alert(helperMsg);
  elem.focus();
  return false;
 }
}

function madeSelection(elem, helperMsg){
 if(elem.value == "*Tiada Pilihan"){
  alert(helperMsg);
  elem.focus();
  return false;
 }else{
  return true;
 }
}


function emailValidator(elem, helperMsg){
 var emailExp = /^[\\w\\-\\.\\+]+\\@[a-zA-Z0-9\\.\\-]+\\.[a-zA-z0-9]{2,4}$/;
 if(elem.value.match(emailExp)){
  return true;
 }else{
  alert(helperMsg);
  elem.focus();
  return false;
 }
}


</script> 

how to add the group of radio button validation inside the existing js validator… is it posible to merge it in one function? I try to add this code but its not working…

var flag1 = 1;
                                    if (document.thisform.qs1.type == "textarea")
                                    {
                                        if (document.thisform.qs1.value)
                                        {
                                            flag1 = 0;
                                        }
                                    }
                                    else
                                    {
                                        for (var i = 0; i < document.thisform.qs1.length; ++i)
                                        {
                                            if (document.thisform.qs1[i].checked)
                                            {
                                                flag1 = 0;
                                            }
                                        }
                                    }
                                    if (flag1)
                                    {
                                        alert('Please answer Question # 1.');
                                        if (document.thisform.qs1.type == "textarea")
                                        {
                                            document.thisform.qs1.select();
                                        }
                                        return false;
                                    }
                                    var flag2 = 1;
                                    if (document.thisform.qs2.type == "textarea")
                                    {
                                        if (document.thisform.qs2.value)
                                        {
                                            flag2 = 0;
                                        }
                                    }
                                    else
                                    {
                                        for (var i = 0; i < document.thisform.qs2.length; ++i)
                                        {
                                            if (document.thisform.qs2[i].checked)
                                            {
                                                flag2 = 0;
                                            }
                                        }
                                    }
                                    if (flag2)
                                    {
                                        alert('Please answer Question # 2.');
                                        if (document.thisform.qs2.type == "textarea")
                                        {
                                            document.thisform.qs2.select();
                                        }
                                        return false;
                                    }
                                    var flag3 = 1;
                                    if (document.thisform.qs3.type == "textarea")
                                    {
                                        if (document.thisform.qs3.value)
                                        {
                                            flag3 = 0;
                                        }
                                    }
                                    else
                                    {
                                        for (var i = 0; i < document.thisform.qs3.length; ++i)
                                        {
                                            if (document.thisform.qs3[i].checked)
                                            {
                                                flag3 = 0;
                                            }
                                        }
                                    }
                                    if (flag3)
                                    {
                                        alert('Please answer Question # 3.');
                                        if (document.thisform.qs3.type == "textarea")
                                        {
                                            document.thisform.qs3.select();
                                        }
                                        return false;
                                    }
            }

here is the full code I am using
http://www.modernessence.net/e1flashz/images_tmp/form_code.txt

this is how the form looks like …
http://modernessence.net/e1flashz/images_tmp/form_validation.jpg

Any ideas how to add the function?

Thank you in advance.

(sorry for my english, i’m from malaysia)