diff --git a/scripts_pp.js b/scripts_pp.js
index 92e8cfc..79d700e 100644
--- a/scripts_pp.js
+++ b/scripts_pp.js
@@ -155,7 +155,22 @@ jQuery("document").ready(function(jQuery){
 		commentsswicther.click(function() { commentsToggle() });
 	
 	}
-	
+  
+  var top = jQuery('#commentAdd').offset().top - parseFloat(jQuery('#commentAdd').css('marginTop').replace(/auto/, 0));
+  jQuery(window).scroll(function (event) {
+    // what the y position of the scroll is
+    var y = jQuery(this).scrollTop();
+  
+    // whether that's below the form
+    if (y >= top) {
+      // if so, ad the fixed class
+      jQuery('#commentAdd').addClass('fixed');
+    } else {
+      // otherwise remove it
+      jQuery('#commentAdd').removeClass('fixed');
+    }
+  });
+
 	
 });
 
diff --git a/theme.css b/theme.css
index 95f7c7a..cd2be7e 100644
--- a/theme.css
+++ b/theme.css
@@ -256,7 +256,7 @@ a:hover 		{ border-bottom: none;}
 	font-family: Arial,Helvetica,sans-serif;
 	font-size: 100%;
 }
-
+#commentAdd.fixed {  position: fixed; top: 10px; }
 #pictureCommentList .commentsOrder	{ float: left; margin-bottom: 5px;}
 #pictureCommentList .navigationBar	{ float: right; margin-bottom: 5px;}
 #pictureComments h4					{ margin: 0;}