jquery / ajax / expression engine - set a custom member field within a safecracker form
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I'm using jquery with expression engine to submit an ajax form, utilizing the safe cracker module, documented here:

http://expressionengine.com/user_guide/modules/safecracker/examples.html

Basically, my form allows logged in members to vote. I want them to be able to vote only once though, so I set up a custom profile data field called "voted" which I want to set to "true" once they submit the form. Is this possible? If so, how?
