ie8 fixes for inline comments :/

rhodecode/public/js/rhodecode.js

@@ -75,6 +75,20 b' if(!Array.prototype.indexOf) {'
     };
 }
 
+// IE(CRAP) doesn't support previousElementSibling
+var prevElementSibling = function( el ) {
+    if( el.previousElementSibling ) {
+        return el.previousElementSibling;
+    } else {
+        while( el = el.previousSibling ) {
+            if( el.nodeType === 1 ) return el;
+        }
+    }
+}
+
+
+
+
 /**
  * SmartColorGenerator
  *
@@ -483,7 +497,10 b' var injectInlineForm = function(tr){'
 		  tooltip_activate();
 		  MentionsAutoComplete('text_'+lineno, 'mentions_container_'+lineno, 
 	                         _USERS_AC_DATA, _GROUPS_AC_DATA);
-		  YUD.get('text_'+lineno).focus();
+		  var _e = YUD.get('text_'+lineno);
+		  if(_e){
+			  _e.focus();
+		  }
 	  },10)
 };
 
@@ -492,7 +509,7 b' var deleteComment = function(comment_id)'
     var postData = {'_method':'delete'};
     var success = function(o){
         var n = YUD.get('comment-tr-'+comment_id);
-        var root = n.previousElementSibling.previousElementSibling;
+        var root = prevElementSibling(prevElementSibling(n));
         n.parentNode.removeChild(n);
 
         // scann nodes, and attach add button to last one
@@ -1234,6 +1251,7 b' var MentionsAutoComplete = function (div'
 		return [null, null];
     };
     
+    if (ownerAC.textboxKeyUpEvent){
 	ownerAC.textboxKeyUpEvent.subscribe(function(type, args){
 		
 		var ac_obj = args[0];
@@ -1250,7 +1268,7 b' var MentionsAutoComplete = function (div'
 		ownerAC.dataSource.mentionQuery = curr_search;
 
 	})
-
+	}	
     return {
         ownerDS: ownerDS,
         ownerAC: ownerAC,