Conflict between UI Date Picker and Fancybox

Conflict between UI Date Picker and Fancybox

I had the datepicker workng just fine but when I installed Fancybox the datepicker is now not showing the icon and is trowing an error. Any ideas?

It appears to me that the "$(document).ready(function()" from the fancybox is overwriting the one from the datepicker.