Quantity Toggle Increment/Decrement FunctionalityDescription Needed

qty-toggle.html

<div class="qty-box qty-toggle">
    <span class="label"><?php echo $this->__('Quantity');?></span>

    <div class="inner">
        <button class="button minus decrement" type="button"><i class="icon-minus"></i></button>
        <input type="number" name="qty" id="qty" maxlength="12" value="<?php echo ($_product->getQty()*1) ?>" title="<?php echo $this->__('Qty') ?>" placeholder="QTY" class="input-text qty" />
        <button class="button plus increment" type="button"><i class="icon-plus"></i></button>
    </div>
</div>

qty-toggle.js

/**
 * Quantity Toggle Increment/Decrement Functionality
 * @type {*|jQuery|HTMLElement}
 */
var $qtyToggle = $('.qty-toggle');
if ($qtyToggle.length > 0) {
    $qtyToggle.each(function(index, element) {
        var $el = $(element),
            minQuantity = $el.data('min-quantity') || 0,
            maxQuantity = $el.data('max_quantity') || 100,
            $qtyInput = $el.find('.qty'),
            currentQty = $el.find('.qty').val(),
            disabledClass = 'disabled',
            $decrementEl = $el.find('.decrement'),
            $incrementEl = $el.find('.increment');

        $el.data('currentQty', currentQty);

        $decrementEl.addClass(disabledClass).on('click', function(e) {
            var $this = $(this);
            currentQty = $el.data('currentQty');

            if (currentQty > minQuantity) {
                currentQty--;
                $qtyInput.val(currentQty);
                $el.data('currentQty', currentQty);

                if ($incrementEl.hasClass(disabledClass)) {
                    $incrementEl.removeClass(disabledClass);
                }

                if (currentQty === minQuantity) {
                    // Do Nothing and disable button
                    $this.addClass(disabledClass);
                }
            }
        });

        $incrementEl.on('click', function(e) {
            var $this = $(this);
            currentQty = $el.data('currentQty');

            if (currentQty < maxQuantity) {
                currentQty++;
                $qtyInput.val(currentQty);
                $el.data('currentQty', currentQty);

                if ($decrementEl.hasClass(disabledClass)) {
                    $decrementEl.removeClass(disabledClass);
                }

                if (currentQty === maxQuantity) {
                    // Do Nothing and disable button
                    $this.addClass(disabledClass);
                }
            }
        });
    });
}