Tracking radio buttons

or, "Is it possible to track radio buttons on a form as to whether they're checked or not?"

If you want to track a radio button on a form, there are two methods you can use:

• Track clicks on individual buttons
• Track the form when the user submits it to your site

Tracking every click

The first method is straightforward. Given a form containing:

<input name="newsletter" type="radio" class="inputCheckBox" value="Yes" checked="checked" />

You would change it to:

<input name="newsletter" type="radio" class="inputCheckBox" value="Yes" checked="checked" onclick="if (typeof cr_track != 'undefined') cr_track('XXX',,this.value);" />

This, will track when the element is checked, and pass the value "Yes" to our servers.

This also means it will not track when it's unchecked, or deselected. However, for some sites this may suffice, as it's simple to implement.

Tracking when the form is submitted

The second method is slightly more complex, as it requires adding more JavaScript to your page:

<script type="text/javascript">
function track_checkbox_value(f, form_item_name)
{
   var track_value = '-- Not checked --';
   for (var i = 0; i < f.elements.length; i++) {
      if (f.elements[i].name == form_item_name) {
         if (f.elements[i].checked) {
            track_value = f.elements[i].value;
         }
      }
   }
   return cr_submit(f, 'XXX','',track_value);
}
</script>
<form method="post" action="form.html" onsubmit="return track_checkbox_value(this, 'newsletter')">
<input name="newsletter" type="radio" class="inputCheckBox" value="Yes" checked="checked" />
<input name="newsletter" type="radio" class="inputCheckBox" value="No" />
<input type="submit" />
</form>

You pass the item you want to check the value of (in this case "newsletter") in the onsubmit method of the form tag. This will save and submit the selected value to ConversionRuler.

Very Important: In the above examples, you will need to change the value XXX to your action code. This can be determined by looking at the "Code Generator" page and reviewing the value within cr_track.

Also Very Important: For the above examples to work, you must have a landing snippet or action snippet on the page.

See also

• cr_track
• cr_link
• cr_submit