Avoding browser history when changing iframe src

We ran into a problem where we needed to have an iframe who's source needed to be changed dynamically by a javascript based on some user data. The issue was that Internet Explorer saved the iframe's old url in the history. The simple solution is to dynamically write the iframe with it's real src instead of having an iframe on the page and then changing it's src.

You do it like this:

var iframeHeaderCell = document.getElementById('wheretoputheiframe');
var dynamicURL = 'http://...' //your url
var iframeHeader = document.createElement('IFRAME');
iframeHeader.id = 'iframeHeader';
iframeHeader.src = dynamicURL ;
iframeHeader.width = ...;
iframeHeader.height = ...;
iframeHeader.scrolling = 'no';
iframeHeader.frameBorder = 0;
iframeHeader.align = 'center';
iframeHeader.valign='top'
iframeHeader.marginwidth = 0;
iframeHeader.marginheight = 0;
iframeHeader.hspace = 0;
iframeHeader.vspace = 0;
iframeHeaderCell.appendChild(iframeHeader);

Elementry, my dear Watson.