in the source of you page I see the following:
<script type="text/javascript" src="http://maps.google.com/maps?file=api&v=2&key=ABQIAAAA9SBrNKdBTYII92vWY6iQJBSm2A2Memkv4gf_Qpl4Jn7lsm1FKBSxJVJ25ACRA1IxdtTyYWz3OARisw">/*wagmp*/</script>
and further down:
<script type="text/javascript" src="http://maps.google.com/maps?file=api&v=2&key=ABQIAAAA9SBrNKdBTYII92vWY6iQJBQDl0Hid9QTrAEerB2CczdGQqeVoRS3HUS-enL10oxGQ3sksqn9pdI8-g">/*wagmp*/</script>
only one of those script tags is needed, the second one is causing the error.
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