Problem in popup window

Problem in popup window


Dear Members,
I am new user of jquery. I am trying to implement floating windows.
It's is working first time fine with error
jQuery.dequeue is not a function
e()interface.js (line 12)
complete()jquery.js (line 3093)
e()interface.js (line 12)
e()interface.js (line 12)
[Break on this error] eval(function(p,a,c,k,e,d){e=function(c)
{return(c<a?'':e(parseInt(c/a)))+((c=c%...
and we close window it will generate another error.
My code is same as given in demo,
Please resolve it,
Thanks