Start or Stop expression at a given frame?

hello to everyone on the support forum.
I searched the forum but wasn't able to find anything quite good for resolving the matter.
This is something that my IT group Charles Stinson, Nick Carangi, and Sandra Connor have been working on fixing for a while.
I'm getting into expression but the issue is that I am not able to start or stop an expression at a given moment.
I.E. If i want to wiggle(3, 10) until frame 100.
How can I set this up?
Thanks in advance.
After Effects Cs5.5

Rick and Dave are correct that it may be easiest to split the layer, but there are examples in After Effects Help for doing this with expressions, here:
http://helpx.adobe.com/en/after-effects/using/expression-examples.html#expression_example_ start_or_stop_wiggle_at_specific_time

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Attachments:
trigger_cam.jpg ‏345 KB
trigger_stop.jpg ‏354 KB
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quote:
Originally posted by:
Newsgroup User
I cannot lengthen the timeout so I need to figure out a way
to process
the data in chunks. Thanks.
Are you sure you can not lengthen the timeout. The
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tag allows one to define a specific timeout for a given page,
as long as
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administrator.
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what iterations to process, and use some kind of extra
request storage
for the results, such as server|application|session scopes,
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files.
Hope that gives you some help.
Ian
Sounds like more than I know how to do. I cant change the
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