IE Issue: Submitting form to an iframe using javascript

You’ve hit a bug in Internet Explorer.

You CAN NOT set the name attribute of ANY element in IE using the standard DOM Method .setAttribute('name', value);

In IE (before version 8 running in IE8 standards mode) this method will not work to set the name attribute.

You need to use one of the following:

//A (any browser)
var iframe = document.createElement('iframe');
iframe.name="frame_x";

//B (only in IE)
var iframe = document.createElement('<iframe name="frame_x"/>');

//C (use a JS library that fixes the bug (e.g. jQuery))
var iframe = $('<iframe name="frame_x"></iframe>');

//D (using jQuery to set the attribute on an existing element)
$('iframe:first').attr('name','frame_x');