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[Plugin: Contact Form 7] Dynamic drop-down lists

  • Hi
    I am trying to improve the contact form on my site so that when you choose some car maker on a drop-down menu, then the car model drop-down menu will change according to the maker.
    for example:
    drop down 1: Nissan, Chevrolet, Honda
    drop down 2: please select maker

    visitor clicked Nissan

    drop down 2: 350z, gtr, maxima

    Now, using javascript I was able to do that, but contact form 7 wont send the value with the email. this is weired but I am pretty sure it is simple to solve. I am not familiar with the plug-in code so that is why Im asking you help 🙂

    here is my code:

    <script type="text/javascript">
    var maker = document.getElementById('maker');
    maker.setAttribute('onchange','changemodel(this.value)')
    
    function changemodel(maker) {
    var model = document.getElementById('model');
    model.options.length = 0;
    model.options[0]=new Option("3", "3", true, false);
    model.options[1]=new Option("6", "6", false, false);
    model.options[2]=new Option("MPV", "MPV", false, false);
    }
    </script>

    Thanks guys!

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