How to refresh tag's mail immedieately

[ohm_g7]

I download one zimlet to ask for return receipt from
Return/Read Receipt Zimlet | ::Seacom°blog°Zimbra::
and I install altermine. I test this function it's ok.
But I have one problem.

when I got mail(ask for return receipt) ,it's will pop dialog box for ask me want to send return receipt mail back or not. After I choose send ,this zimlet will send mail and add Read tag to that mail(if mail was added this tag it 's not ask for return receipt when I read it again). But read tag not show immediately.So if I click that mail again it will ask me want to send return receipt mail again too.
It's will show read tag when I refresh web. How I do for make that mail to update tag immediately.

I found this link Refresh message view
but I don't know where I should put this code in my js file

thank you for reply

[ohm_g7]

I got code.
I put this code in my js file and tag can update immadately

appCtxt.getApp(ZmApp.MAIL)._mailSearch();