ie6 & ie7 iframe - background-color NO DISPLAY

[badgering]

My site runs 3rd party ads in a iframe of my header. My header has a style background-color:#F8AC19

My problem is when there are no 3rd party ads running the iframe still loads a white square. I do not have access to the iframe html page code as this is 3rd party page so I have tried to add style="background-color:#F8AC19" in the actual iframe on my page which works in everything except ie6 and ie7 has anyone got any ideas how to get this to work in IE browsers?

Thx
Dan

[penders]

As mentioned on the Microsoft site [msdn2.microsoft.com], you can access the properties of the iframe object with JavaScript:

sColor = document.frames("sFrameName").document.body.style.backgroundColor;

Can you change this value?