function changeOrder(position) {
    var myform = document.forms["paypal_form_"+position];
    var shirt_size = myform.tshirt_size.value;
    var shirt_color = myform.tshirt_color.value;
    var shirt_qty = myform.tshirt_quantity.value;

    myform.item_quantity.value = shirt_qty;

    var order_details = "- Size: " + shirt_size + "  Color: " + shirt_color;

    var original_description = myform.item_name.value;
    myform.item_name.value = original_description.substring(0,33) + order_details;
    //alert(myform.item_name.value);
    return 1;
};