Replace inline onlick handler for go back.

templates/2k11/admin/images.inc.tpl

@@ -78,7 +78,7 @@
 {/if}
 {if $case_rename}
     {if $go_back}
-    <input type="button" value="{$CONST.BACK}" onclick="history.go(-1);">
+    <input class="go_back" type="button" value="{$CONST.BACK}">
     {else}
     <script>location.href="?serendipity[adminModule]=images&serendipity[adminAction]=default";</script>
     <noscript><a href="?serendipity[adminModule]=images&amp;serendipity[adminAction]=default">{$CONST.DONE}</a></noscript>

templates/2k11/admin/media_choose.tpl

@@ -237,7 +237,7 @@ if (parent.frames && parent.frames['tree']) {
             {/if}
             {serendipity_hookPlugin hookAll=true hook='frontend_image_selector_more' eventData=$media.file}
             <div class="form_buttons">
-                <input type="button" value="{$CONST.BACK}" onclick="history.go(-1);">
+                <input class="go_back" type="button" value="{$CONST.BACK}">
                 <input type="button" value="{$CONST.DONE}" onclick="rememberMediaOptions(); {$media.file.origfinishJSFunction}">
                 {serendipity_hookPlugin hookAll=true hook='frontend_image_selector_submit' eventData=$media.file}
             </div>

templates/2k11/admin/serendipity_editor.js.tpl

@@ -750,6 +750,11 @@ function highlightComment(id, checkvalue) {
         invertSelection();
     });
 
+    // Go back one step
+    $('.go_back').click(function() {
+        history.go(-1);
+    });
+
     // Add media db upload field
     var $uploadForm = $('body').has('#uploadform');