.thank everyone for your/their support...

[Tan Elaine]

If I am addressing those who turn up for the event should I use 'your' or 'their'?

We like to thank everyone for your/their support and making the event a success.

Thanks.

[emsr2d2]

We would like to thank everyone for their support.
We would like to thank you all for your support.
We would like to thank all of you for your support.

[5jj]

I agree with emsr2d2. However, you will hear, "We'd like to thank everyone for your support and for making the event a success". I don't think many people would consider it to be incorrect.