How receive xml code without AJAX

In an app that i'am creating i have to receive from the server an xml string with this format eg: <reply> <script> alert('Hello World!'); </script> </reply> when i did this using ajax work perferct, but when i try to receive the data in an i开发者_JAVA技巧frame i can't extract the data from the frame because is not there, IE and FF open new tabs and append the data on that tab, how i avoid that and makes them insert the data on the frame.

I can do this work still using Javascript, get the result of the ajax and write it inside the iframe:

1. first create your iframe tag like this:

2. than the javascript code to insert the ajax:

   var t = document.getElementById('iftarget');

   h = t.contentWindow.document.getElementsByTagName('html');

   h[0].innerHTML = '<h1>Hello</h1> This must work! Put your data here';

I have created a jsFiddle for this http://jsfiddle.net/nunomazer/JGyEr/

Best Regards