gist-js-Calculate-Selected-Checkbox-Values.cfm

<!--- JS - this goes into the html footer --->
<script>
$(document).ready(function() {
    function recalculate() {
        var sum = 0;

        $("input[type=checkbox]:checked").each(function() {
            sum += parseInt($(this).attr("optionpricelocalcurrency"));
        });

        $("##calculatedvalue").html(sum);
    }

    $("input[type=checkbox]").change(function() {
        recalculate();
    });
});
</script>

<!--- html example - for the template ---->
    <p><input type="checkbox" value="#dbresult.optionpricelocalcurrency#" rel="#dbresult.optionpricelocalcurrency#">#dbresult.optionlisttitle#</p>
<span id="calculatedvalue"></span>