customalert.js

<script type="text/javascript">

    var currenturl = window.location.href;
    var url = "p=75";

    if (currenturl.indexOf("p=75") != -1)
    {
        var trimurl = currenturl.replace('p=75', '');
        customAlert();
    }

   if (currenturl.indexOf("p=399") != -1)
    {
        var trimurl = currenturl.replace('p=399', '');
        customAlert();
    }

    if (currenturl.indexOf("p=397") != -1)
    {
        var trimurl = currenturl.replace('p=397', '');
        customAlert();
    }


    if (currenturl.indexOf("p=396") != -1)
    {
        var trimurl = currenturl.replace('p=396', '');
        customAlert();
    }

    if (currenturl.indexOf("p=407") != -1)
    {
        var trimurl = currenturl.replace('p=407', '');
        customAlert();
    }

    if (currenturl.indexOf("p=395") != -1)
    {
        var trimurl = currenturl.replace('p=395', '');
        customAlert();
    }

    function customAlert() {
        var answer = confirm("Our supplier Spendless are currently experiencing issues with their website. Members wishing to purchase will need to call Spendless on 1800 352 600 and order over the phone.");
        if (answer)
            window.location.assign(currenturl);
        else
            window.location.assign(trimurl);
    }

</script>