If I don't select yes or no into my radio button question i'm getting an error

Please see images:
question 1 - if nothing is selected and i click yes i got a coldfusion error
question 1 - if i select a yes a textfield show, the form is working fine.
                    If i select no, the form is working fine.

So, I have a radio question 'Yes' or 'no'. Could you please advice on that error. How I can fix my code:

my form code:
------------------------
<script type="text/javascript">
function checkme(ele){
      var inputbox = document.getElementById("specify");
      if(ele.value=="Yes"){
            inputbox.style.display="block";
            var er = document.getElementById("error");
            er.style.display="none";
      }else{
            inputbox.style.display="none";
      }
}

function checksubmit(f){
      var radio = f.contactMeYes.value;
      var inputbox = f.ContactMeSpecify.value;
      if(radio=="Yes" && inputbox==""){
            var er = document.getElementById("error");
            er.style.display="inline";
            return false;
}else{
            var er = document.getElementById("error");
            er.style.display="none";
            return true;
            }
}
</script>


 <p><br><label for="strEmail"><strong><strong>1.</strong>      If your skill set is suitable to other committees, would you be willing to be contacted regarding any openings?   </label> </p>

<table border="0" cellspacing="0" cellpadding="0" width="100%" class="qtable">
<tr><td colspan="2" height="5" width="100%">

<input type="radio" name="contactMe" id="contactMeYes" value="Yes" onClick="checkme(this);"/>&nbsp;<label for="ContactMeYes">Yes</label>

<input type="radio" name="contactMe" id="contactMeNo" value="No" onClick="checkme(this);"/>No</label>

<br>
<div id="specify" style="display:none;">
<label>Please specify:
<input type="text" name="ContactMeSpecify" id="ContactMeSpecify" value="" maxlength="255" size="30" style="width: 200px;border:red 1px solid;">
</label>
</div>              

</td></tr> </table>


my Confirmation code
----------------------------------
  <cfmail from="#form.email#"
            server="mail.abc.ca"
            subject="test"
            to="jo@adc.ca"
            type="html">
                   ------------------------------------------------------------<BR>
                <B>Member ID and User ID:</B>#Form.ID_Number# - #user_id#<BR>
                <B>Your skill set is suitable to other committees:</B> #Form.ContactMe# <cfif contactMeSpecify neq "">(#FORM.ContactMeSpecify#)</cfif> <br>
             
            </cfmail>


My Error if I don't select a YES or a NO, i'm getting that error.. how i can resolve it ?

<P>An error occurred while evaluating the expression:
<P><PRE>"#form.contactMe#"
</PRE></P></P>Error near line 39, column 41.<HR><P>Error resolving parameter <B>FORM.CONTACTME</B><P><P>The specified form field cannot be found. This problem is very likely due to the fact that you have misspelled the form field name.<P><P> <p>The error occurred while processing an element with a general identifier of (CFQUERYPARAM), occupying document position (39:17) to (39:83) in the template file D:\USERS\ACTCA\HTML\MEMBERS\VOLUNTEER\CONFIRMATION_E.CFM.</p><P><P>
q1.jpg
q1ifYes-selected-textfield-wills.jpg
LelloLelloAsked:
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Ben McNellyCommented:
I would just add

checked="true"

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to the first one
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_agx_Commented:
Radio buttons only exist IF they're checked. If neither button is checked the field won't exist on the action page. That's why you're getting an error.

How you handle it depends on whether it's mandatory. If so, you need to force the user to make a selection and prevent the form from submitting until they do. You can use javascript, but should re-validate on the server as well.

Not tested
        <script type="text/javascript">
              function atLeastOneWasChecked(frm) {
                   var buttons = frm.contactMe;
                   for (var i = 0; i < buttons.length; i++)  {
                          if (buttons[i].checked) {
                                return true;
                          }
                   }
                  alert('Please select yes or no');
                   return false; 
              }
        </script>
        <!--- before submitting verify one button was checked ...--->
        <form onSubmit="return atLeastOneWasChecked(this);" ....>
              ....

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Otherwise, just set a default like "no", so you don't get an error when you try and use the field.

        <!--- so the field always exists ...--->
        <cfparam name="form.contactMe" default="no">    
          ... rest of action page code
0
LelloLelloAuthor Commented:
i like it but it didn't work. the javascript is not launching...  so this message 'Please select yes or no' is not displaying...
0
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LelloLelloAuthor Commented:
.............
</head>


        <script type="text/javascript">
              function atLeastOneWasChecked(frm) {
                   var buttons = frm.contactMe;
                   for (var i = 0; i < buttons.length; i++)  {
                          if (buttons[i].checked) {
                                return true;
                          }

                   return false; 
              }
        </script>

<script type="text/javascript">
function checkme(ele){
	var inputbox = document.getElementById("specify");
	if(ele.value=="Yes"){
		inputbox.style.display="block";
		var er = document.getElementById("error");
		er.style.display="none";
	}else{
		inputbox.style.display="none";
	}
}

function checksubmit(f){
	var radio = f.contactMeYes.value;
	var inputbox = f.ContactMeSpecify.value;
	if(radio=="Yes" && inputbox==""){
		var er = document.getElementById("error");
		er.style.display="inline";
		return false;
}else{
		var er = document.getElementById("error");
		er.style.display="none";
		return true;
		}
}
</script>


<body>

        <cfform id="form1" name="form1" onSubmit="return atLeastOneWasChecked(this);" action="confirmation_e.cfm" method="POST">

<table border="0" cellspacing="0" cellpadding="0" width="100%" class="qtable">
            <tr>
              <td colspan="2" height="5" width="100%">
           				<input type="radio" name="contactMe" id="contactMeYes" value="Yes" onClick="checkme(this);"/>Yes
							<input type="radio" name="contactMe" id="contactMeNo" value="No" onClick="checkme(this);"/>No</label>
							&nbsp;&nbsp;<br>
                            <div id="specify" style="display:none;">
<label>Please specify:
<input type="text" name="ContactMeSpecify" id="ContactMeSpecify" value="" maxlength="255" size="30" style="width: 200px;border:red 1px solid;">
</label>
</div>              
</td>
            </tr>
          </table>
   </cfform>

FYI, I have disabled this code in my confirmation.cfm.

 <!---<B>Your skill set is suitable to other committees:</B> #Form.ContactMe# <cfif contactMeSpecify neq "">(#FORM.ContactMeSpecify#)</cfif> <br>--->

So there is no error but the javascript message doesn't display this msg. 'Please select yes or no?  Why pls advice.

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_agx_Commented:
i like it but it didn't work. the javascript is not launching.


Yeah, like I mentioned it's not tested. So there may be a typo in my code or yours. I can't test any of this right now. But since you're using cfform already, why not use <cfinput>?  Then you don't need extra js functions only:

<!--- REMOVE the onSubmit="return ..." code --->
<cfform ...>
     <cfinput type="radio" name="contactMe" value="Yes"
         required="true" message="Please select Yes or No"  .../>Yes
     <cfinput type="radio" name="contactMe" value="No" ... />No
                              
</cfform>
0

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LelloLelloAuthor Commented:
WOW that was the msg i'm missing !!! Genius :)
message="Please select Yes or No"
0
LelloLelloAuthor Commented:
0
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