Index: src/wp-includes/js/comment-reply.js
===================================================================
--- src/wp-includes/js/comment-reply.js	(revision 30275)
+++ src/wp-includes/js/comment-reply.js	(working copy)
@@ -1,6 +1,13 @@
 var addComment = {
 	moveForm : function(commId, parentId, respondId, postId) {
-		var t = this, div, comm = t.I(commId), respond = t.I(respondId), cancel = t.I('cancel-comment-reply-link'), parent = t.I('comment_parent'), post = t.I('comment_post_ID');
+		var t = this,
+			div,
+			comm = t.I(commId),
+			respond = t.I(respondId),
+			cancel = t.I('cancel-comment-reply-link'),
+			parent = t.I('comment_parent'),
+			post = t.I('comment_post_ID'),
+			commentForm = respond.getElementsByTagName('form')[0];
 
 		if ( ! comm || ! respond || ! cancel || ! parent )
 			return;
@@ -35,12 +42,19 @@
 			return false;
 		};
 
-		try { t.I('comment').focus(); }
-		catch(e) {}
+		try {
+			for ( var i = 0; i < commentForm.elements.length; i++ ) {
+				if ( 'hidden' === commentForm.elements[i].type || true === commentForm.elements[i].disabled ) {
+					continue;
+				}
+				commentForm.elements[i].focus();
+				respond.scrollIntoView();
+				break;
+			}
+		} catch(e) {}
 
 		return false;
 	},
-
 	I : function(e) {
 		return document.getElementById(e);
 	}