Combo Box problem in struts

[ksusant]

Plz help me..

I have 3 combo box in a jsp. I want to display 2nd combo box value with respect to selected 1st combo box value which will be of type onchange and 3rd w.r.t. 2nd selection.
And all the values will retrieve from the database.

This is my jsp...

  <html:form action="/nodeAction.do" >
 	<table ><tr><td align="center"><b>NODE DETAILS</b></td>
	</tr></table>
                <table > <tr> <td align="right">Customer Name:</td> 
	<td align="left"><html:select property="customername" onchange="submit()">
				         			<html:option value ="">Please select</html:option>
	<html:options collection="contactcustomername" property="customerv"/>
	</html:select>
	</td></tr></table>
	 </html:form> 
     
     	 <html:form action="/nodeAction.do" >     				<table > <tr><td align="right">Location Name:</td> 
	<td align="left"><html:select property="locationname" onchange="submit()">
				         			<html:option value ="">Please select</html:option>
				         			<html:options name="nodelocationname" collection="nodelocationname" property="nodelocv"/>
	</html:select></td>
         <td align="right">Room Number:</td> 
    <td align="left"><html:select property="roomnumber" >
    <html:option value ="">Please select</html:option>
</html:select>
	</td></tr></table>
  </html:form>

And in Action class
I have...

request.setAttribute("contactcustomername", customernames);
request.setAttribute("nodelocationname",locationnames);

where customernames and locationnames are two arraylists.

Whenever I am executing my application it is giving the error like

org.apache.jasper.JasperException: javax.servlet.ServletException: javax.servlet.jsp.JspException: Cannot find bean under name nodelocationname

But if I will remove

<html:options name="nodelocationname" collection="nodelocationname" property="nodelocv"/>

for the first time and after executing the application if i will put the code once again then it is working....

[Dököll]

Do you ahave the bean metioned in the error?
"Cannot find bean under name nodelocationnam e"