Insert a Script into a iFrame's Header, without clearing out the body of the iFrame

Question

I\'m looking to add a script to an iFrame\'s header while not losing everything contained in the iFrame\'s body or header...

here is what I have right now which does upd

Answer 1

var headID = document.getElementsByTagName("head")[0];         

var newScript = document.createElement('script');
newScript.type = 'text/javascript';
newScript.src = 'yourpath';
headID.appendChild(newScript);