Strange New Error when using FancyBox and jQuery [duplicate]

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Strange Error when using FancyBox and jQuery

I'm getting an error when trying to use Fancybox

Firebug tells me

c.easing[this.options.specialEasing && this.options.specialEasing[this.prop] || b] is not a function [Break On This Error] this.options.show)for(var k in this.op...end(c.fx,    {tick:function(){for(var a= –

I'm positive that all the paths to script and style files are correct.

<script type="text/javascript" src="/Javascript/jquery-1.4.3.min.js"></script>    
<script type="text/javascript" src="/Javascript/jquery.mousewheel-3.0.4.pack.js"> </script>
<script type="text/javascript" src="/Javascript/jquery.fancybox-1.3.4.pack.js"></script>
<script type="text/javascript">
$(document).ready(function() {
$("#Enlarge").fancybox({
'titleShow'     : false,
'transitionIn'  : 'elastic',
'transitionOut' : 'elastic',
'easingI开发者_JAVA百科n'      : 'easeOutBack',
'easingOut'     : 'easeInBack'
});});
 </script>

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You need jQuery easing pack if you want to use other than swing and linear easing options.