--- a/static/dmx.js	Thu May 01 23:44:42 2014 +0300
+++ b/static/dmx.js	Thu May 01 23:55:53 2014 +0300
@@ -1,3 +1,8 @@
+/*
+ * Get current value for given head/attr.
+ *
+ * Returns undefined if no such attr.
+ */
 function dmx_input (head, attr) {
     var value = $('.dmx-input#' + head + '-' + attr).val();
     
@@ -11,6 +16,23 @@
 }
 
 /*
+ * Update current output value.
+ */
+function dmx_update (input) {
+    var name = input.attr('name');
+    var value = input.val();
+
+    console.log("dmx_update: " + name + ": " + value);
+
+    var data = { }; data[name] = value;
+
+    $.ajax({
+            type:   'POST',
+            data:   data,
+    });
+}
+
+/*
  * Update color for head.
  */
 function dmx_color (head) {
@@ -46,7 +68,10 @@
  */
 function slider_input (input, slider) {
     // bind
-    input.change(function () { _slider_input(input, slider); });
+    input.change(function () {
+        dmx_update(input);
+        _slider_input(input, slider);
+    });
 
     // initialize
     _slider_input(input, slider);
@@ -78,6 +103,8 @@
                     dmx_color(head);
                 }
 
+                // send output
+                dmx_update(input);
             },
         });