Sharing variables between web workers? [global variables?]

Question

Is there any way for me to share a variable between two web workers? (Web workers are basically threads in Javascript)

In languages like c# you have:

Answer 1

I recently read about (but have not used), shared workers. According to Share the work! Opera comes with SharedWorker support, support is only in the newest browsers (Opera 10.6, Chrome 5, Safari 5).