Tags: ajax javascript IE iframe lightwindow fixes hacks steamshift

Fix for Problems Using Lightwindow and submitting a form using AJAX in IE

I've been using lightwindow at work and we came across an issue where we needed to submit a form "into" the lightwindow iframe.  I did a search and stumbled apon this article by Miguel Arroz which describes the issue for uploading images with AJAX.

Basically the issue is summed up like this:  when creating an iframe element in IE using the javascript .createElement('iframe'); the iframe is created fine but it is not possible to assign it a name tag for some reason.  In the case of lightwindow this made it impossible (in IE) to submit a form into the lightwindow.  Instead it popped the content into a new window as it couldn't find its target.  I would have put this on the lightwindow forums but they're apparently down currently!

The fix is as follows:

This meant a change of the lightwindow.js script (at ~ line 1146 to use Miguel's fix and create the lightwindow iframe like this:

 //
       //  Add in iframe
       //
       _appendIframe : function(scroll) {
               var iframe;
               try {
                 iframe = document.createElement('');
               } catch (ex) {
                 iframe = document.createElement('iframe');
               }

               iframe.setAttribute('id', 'lightwindow_iframe');
               iframe.setAttribute('name', 'lightwindow_iframe');
               iframe.setAttribute('src', 'about:blank');
               iframe.setAttribute('height', '100%');
               iframe.setAttribute('width', '100%');
               iframe.setAttribute('frameborder', '0');
               iframe.setAttribute('marginwidth', '0');
               iframe.setAttribute('marginheight', '0');
               iframe.setAttribute('scrolling', scroll);

This fixed the problem straight away. Thanks to Terminal.app

Until next time...


Dan

Last updated: 10/03/2009 10:20

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