WordPress Jquery Confliction with Plugin

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There are currently two copies of jQuery loaded on site:

  1. In header there is jQuery bundled with WordPress, likely requested by some plugin.
  2. In footer there is jQuery from Google CDN, likely added by your code?

Obviously this is one too many. There are couple of ways to handle it:

  1. If you are fine with using bundled copy you need to register/enqueue your scripts and declare jquery in dependencies, see in Codex: wp_register_script(), $deps argument.
  2. You can re-register jQuery to Google CDN, still good idea to register your script with it as dependency.

Your code seems fine except this at end php wp_head();, php makes no sense, and wp_head() call should be in theme.