[jQuery] Validate() error - "jQuery(a).data is not a function" ?

[jQuery] Validate() error - "jQuery(a).data is not a function" ?

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<DIV><FONT face="Trebuchet MS" size=2><SPAN class=338112314-10082007>Hi all,
</SPAN></FONT></DIV>
<DIV><FONT face="Trebuchet MS" size=2><SPAN class=338112314-10082007>I have a
form, generated with php, which spits out a number of sets of fields (title,
forename, surname etc.), which I need to validate. However, because I don't know
how many sets of field there might be, i can't use the rules/messages as I
usually do:</SPAN></FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT face="Trebuchet MS"
size=2>$("#booking-stage-2").validate({<BR>   event:
"blur",<BR>   errorClass:
"required",<BR>   errorLabelContainer:
$("#errors"),<BR>   wrapper: "li",<BR>   rules:
{<BR>    g12_title_1:
"required"<BR>   },<BR>   messages:
{<BR>    g12_title_1: "Please choose a
title."<BR>   }<BR>  });</FONT></DIV>
<DIV><FONT face="Trebuchet MS" size=2></FONT> </DIV>
<DIV><FONT face="Trebuchet MS" size=2><SPAN
class=338112314-10082007>"g12_title_1" would be from 1 to an unknown
number.</SPAN></FONT></DIV>
<DIV><FONT face="Trebuchet MS" size=2><SPAN
class=338112314-10082007></SPAN></FONT> </DIV>
<DIV><FONT face="Trebuchet MS" size=2><SPAN class=338112314-10082007>I therefore
want to use validate in it's simple form as <SPAN class=338112314-10082007><FONT
face="Trebuchet MS">$("#booking-stage-2").validate();, and put the requirements
inline as class="{required:true}". However, adding <SPAN
class=338112314-10082007><FONT
face="Trebuchet MS">$("#booking-stage-2").validate(); to my script brings up the
error </FONT></SPAN></FONT></SPAN></SPAN></FONT></DIV>
<DIV><FONT face="Trebuchet MS"><FONT size=2>"jQuery(a).data is not a
function" <SPAN class=338112314-10082007>in the console window of FireBug.
Can anyone shed some light on what this means, or where I'm going wrong? I can't
see why it would fall over on such a simple example. I can give access to the
live page if needed, but it's not for general consumption
yet...</SPAN></FONT></FONT></DIV>
<DIV><FONT face="Trebuchet MS"><FONT size=2><SPAN
class=338112314-10082007></SPAN></FONT></FONT> </DIV>
<DIV><FONT face="Trebuchet MS"><FONT size=2><SPAN class=338112314-10082007>This
is all with jQuery 1.1.3 and validate() 1.1</SPAN></FONT></FONT></DIV>
<DIV><FONT face="Trebuchet MS"><FONT size=2><SPAN
class=338112314-10082007></SPAN></FONT></FONT> </DIV>
<DIV><FONT face="Trebuchet MS"><FONT size=2><SPAN
class=338112314-10082007>Thanks,</SPAN></FONT></FONT></DIV><FONT
face="Trebuchet MS" size=2>
<P align=left><B>Luc Pestille</B><BR>Web Designer</P></FONT>
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