first commit

web/stProductOptionsPlugin/js/stProductOptionsStockBackend.js

@@ -0,0 +1,18 @@
+jQuery(function($) {
+    $('.st_product_options_stock').change(function(e) {
+        var checkbox = $(e.target);
+        var container = $(this);
+
+        if (checkbox.is('.st_product_options_stock_checkbox'))
+        {
+            var input = container.find('.st_product_options_stock_value');
+
+            if (checkbox.prop('checked')) {
+                input.removeAttr('disabled');
+            } else {
+                input.attr('disabled', true);
+            }   
+            // checkbox.next().val(!this.checked | 0);
+        }
+    }); 
+});