Problem with javascript conflicting on a wordpress site.

Hi, I'm having an issue on a clients wordpress site where an e-commerce plugin seems to be causing conflicts on a datepicker field on a form on one of the pages. i need someone to fix it so there are no conflicts and so that the e-commerce plugin and the forms datepicker work correctly. Please only bid if you are an expert with wordpress and jquery and only bid if you can do this straight away My max budget for this is $30. Thanks.