Newbie needs help with a loop

[dontask]

Im have learned a great deal here and the help files but Im having issues with a loop. I tried using While and Wend and have had no luck. This is the part of the script I need to repeat if the process is still running

If ProcessExists("firefox.exe") then
MsgBox(0,"Running","Looks like firefox is running.Please close firefox so we can back up your bookmarks and settings, then click OK!")
Else
EndIf

If a user clicks OK I want it to loop back up and check again.

Then continue with the rest of the script when firefox.exe is not found.

[trancexx]

While ProcessExists("firefox.exe")
    MsgBox(...
WEnd

[dontask]

Thanks !! I was trying to do it with the if then still in there with the While and Wend.

[JohnOne]

While 1
If ProcessExists("firefox.exe") then
MsgBox(0,"Running","Looks like firefox is running.Please close firefox so we can back up your bookmarks and settings, then click OK!")
Else
ExitLoop
EndIf
Wend