[FIXED JENKINS-19826] element.setAttribute('name', …) does not work i…

…n IE in compatibility mode, so use prototype’s Element(…) which does.

(cherry picked from commit dda099c)

Conflicts:
	changelog.html

core/src/main/resources/lib/form/apply/apply.js

@@ -29,10 +29,7 @@ Behaviour.specify("INPUT.apply-button", 'apply', 0, function (e) {
 
             // create a throw-away IFRAME to avoid back button from loading the POST result back
             id = "iframe"+(iota++);
-            target = document.createElement("iframe");
-            target.setAttribute("id",id);
-            target.setAttribute("name",id);
-            target.setAttribute("style","height:100%; width:100%");
+            target = Element('iframe', {id: id, name: id, style: 'height:100%; width:100%'});
             $(containerId).appendChild(target);
 
             attachIframeOnload(target, function () {
@@ -80,4 +77,4 @@ Behaviour.specify("INPUT.apply-button", 'apply', 0, function (e) {
                 f.target = null;
             }
         });
-});
+});