How to set tabindex of a jQuery UI Tabs Control

How to set tabindex of a jQuery UI Tabs Control

I want to be able to use the tab key to tab to the jQuery UI Tabs Control, but I do not see where I can set its TabIndex. I see other posts about about the Index of the Tabs within the UI Tabs Control but I am refering to the overall TabIndex of the Control itself (within the page).

Thank you.