error: constructor is null or not an object..

error: constructor is null or not an object..


Im using Fillament group UISlider. after going through the article i
used the stop event of slider to get min and max values..
but couldnt succeed.
what code i use is like following:
$(document).ready(function(){
$('select#<%=valueA.ClientId %>','select#<%=valueB.ClientId
%>').selectToUISlider({
sliderOptions: {
stop: function(e,ui) {
alert('hi');
}
}
});
});
but it is giving me error: constructor is null or not an object..
i m newer to jquery so im not able to get what the problem is . im
using this slider in asp.net and
using two handle slider .
this is my slider code:
<fieldset style="overflow: inherit;">
<select name="valueA" runat="server"
id="valueA" style="display: none;">
</select>
<select name="valueB" runat="server"
id="valueB" style="display: none;">
</select>
<label for="valueA" style="position:
absolute; left: 0px; margin: 8px; _margin-left: -10px">
<span id="spnMinPrice"
runat="server" style="font-size: 13pt; font-family: Arial Narrow;
color: Red;"></span>rs.
</label>
<label for="valueB" style="position:
absolute; left: 110px; font-size: 12px; margin: 8px;
_margin-left: -9px;">
<span id="spnMaxPrice"
runat="server" style="font-size: 13pt; font-family: Arial Narrow;
color: Red;"></span>rs.
</label>
</fieldset>
Please tell me where im going wrong...
Thanks in advance!!!