Javascript Filter on Variable Set

I have the following code on my page that I need to apply some filters to:

<script type="text/javascript">
    function check() {
        var elements = document.getElementsByName("quantity");
        var qtycheck = document.getElementById("qtycheck").value;

        for (var i=0; i<elements.length; i++) {
            var nmbr = elements[i].value;
            if (nmbr > <?php echo $maxqtyorder; ?>){
                alert("You've selected more treats than your package allows.");
                return false;
            }
            else if (nmbr > qtycheck){
                alert("You've selected more treats than your package allows.");
                return false;
            }
        }
        return true;
    }
</script>

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The 2nd line:

var elements = document.getElementsByName("quantity");

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I want to get all the elements by name of quantity but exclude the ones that have an ID of quantity2442 and quantity2443.

Is there a way to do this when setting the variable?