Ajax Control HTML Editor to be focused on page load

Hi Friends,

I have two HTML Editor in one page and want to focus on first HTML Editor on clicking Radio button. But it is focusing on second HTML Editor textbox.

For Internet Explorer, when I set AutoFocus=true, working fine at the same time, in google chrome  it is not focusing on First HTML Editor.

Pl suggest to get worked for all browser. Google Chrome version is 11

Thanks in advance.