cart_script

$(document).ready(function(){

    $("#sell").click(function(e) {
        var check   =  $("#isempty").val();
        if(check!='1'){
            alert("Add Products to Cart First");
        }
    });
    $("#add_cart").click(function(e){
        e.preventDefault();
        $("#isempty").val('1');
        var price           = $("#unit_price").val();
        var customer        = $("#customer_id").val();
        var quantity        = $("#total_quantity").val();
        var total           = $("#total_price").val();
        var warehouse_id    = $("#warehouse_id").val();
        var warehouse       = $("#warehouse_id option:selected").text();
        var product_id      = $("#item_id").val();
        var product         = $("#item_id option:selected").text();

        var category_id     = $("#catagory_id").val();
        var category        = $("#catagory_id option:selected").text();

        var sub_total       = $("#sub_total").val();

        var numsubtotal     = parseInt(sub_total) + parseInt(total);

        var cart_item   = '';
        cart_item += '<tr id="tablerow">';
        cart_item += '<td>' + warehouse + '<input type="hidden" class="form-control" name="warehouse[]" value="'+warehouse_id+'"></td>';
        cart_item += '<td>' + product + '<input type="hidden" class="form-control" name="item[]" value="'+product_id+'" readonly></td>';
        cart_item += '<td>' + category + '<input type="hidden" class="form-control" name="category[]" value="'+category_id+'" readonly></td>';
        cart_item += '<td>' + quantity + '<input type="hidden" class="form-control" name="quantity[]" value="'+quantity+'" readonly></td>';
        cart_item += '<td>' + price + '<input type="hidden" class="form-control" name="price[]" value="'+price+'" readonly></td>';
        cart_item += '<td>' + total + '<input type="hidden" class="form-control" id="cart_total" name="total[]" value="'+total+'" readonly></td>';
        cart_item += '<td><a href="#" style="margin-left: 20px;" class="remove_field btn btn-rounded btn-inline btn-danger"><span class="glyphicon">&#xe088;</span></a></td>';

        cart_item += '</tr>';
        $(".cart").append(cart_item);
        $('option').prop('selected', function() {
            return this.defaultSelected;
        });
        $('.fields').find('input:text').val('');
        $("#customer_id").val(customer);
        $("#sub_total").val(numsubtotal);


    });
    $(".cart").on("click",".remove_field", function(e){
        e.preventDefault();
        var minustotal      = $(this).closest("#tablerow").find("input[id='cart_total']").val();
        var intmintotal = parseInt(minustotal);
        var sub_total       = $("#sub_total").val();
        var numsubtotal     = parseInt(sub_total) - parseInt(intmintotal);
        $("#sub_total").val(numsubtotal);
        $(this).closest('#tablerow').remove();

    })
});