fix javascript errors with ie

scm-webapp/src/main/webapp/resources/js/repository/sonia.repository.changesetpanel.js

@@ -117,7 +117,7 @@ Sonia.repository.ChangesetPanel = Ext.extend(Ext.Panel, {
   },
   
   showCommit: function(){
-    if ( console ){
+    if ( debug ){
       console.debug('open commit for ' + this.revision);
     }
     this.openPanel(this.createCommitPanel());
@@ -126,7 +126,7 @@ Sonia.repository.ChangesetPanel = Ext.extend(Ext.Panel, {
   },
   
   showDiff: function(){
-    if ( console ){
+    if ( debug ){
       console.debug('open diff for ' + this.revision);
     }
     this.openPanel(this.createDiffPanel());
@@ -135,7 +135,7 @@ Sonia.repository.ChangesetPanel = Ext.extend(Ext.Panel, {
   },
   
   downloadRawDiff: function(){
-    if ( console ){
+    if ( debug ){
       console.debug('open raw diff for ' + this.revision);
     }
     window.open(this.createDiffUrl());

scm-webapp/src/main/webapp/resources/js/repository/sonia.repository.js

@@ -83,9 +83,7 @@ Sonia.repository.createUrl = function(type, name){
 }
 
 Sonia.repository.createUrlFromObject = function(repository){
-  var url = Sonia.repository.createUrl(repository.type, repository.name);
-  console.debug(url);
-  return url;
+  return Sonia.repository.createUrl(repository.type, repository.name);
 }
 
 /**

scm-webapp/src/main/webapp/resources/js/sonia.global.js

@@ -29,7 +29,7 @@
  *
  */
 // enable debug mode, if console is available
-var debug = typeof console != 'undefined';
+var debug = typeof console != 'undefined' && typeof console.debug != 'undefined';
 
 var state = null;
 var admin = false;

scm-webapp/src/main/webapp/resources/js/sonia.scm.js

@@ -523,7 +523,7 @@ Sonia.scm.Main = Ext.extend(Ext.util.Observable, {
       css.rel = 'stylesheet';
       css.type = 'text/css';
       css.href = url;
-      document.head.appendChild(css);
+      document.getElementsByTagName('head')[0].appendChild(css);
       this.stylesheets.push(url);
     }
   },