html checkbox tag and checkall javascript functionality results in undefined alert

[sravani jetty]

Here is my jsp page code that builds the jsp page.

<%      ArrayList<AllocationData> allocationValues =(ArrayList<AllocationData>) allocationEntry.getValue();
		              String licenseeName=null,nameNoSpace=null;
                      for(int j=0;j<allocationValues.size();j++)
                      { 
                         AllocationData a = allocationValues.get(j);              
                         long checked=a.getLicenseeId();
                         licenseeName=a.getLicenseeName();   
                         nameNoSpace=licenseeName.replaceAll(" ","");
                      %>
                        <tr>
                        <td><html:checkbox property="name" value="<%=licenseeName%>">
                             <html:hidden property="checked" value="<%=checked%>"/>
                            </html:checkbox></td>
                        <td><%=a.getLicenseeName()%></td>
                        <td><%=a.getLogId()%></td>
                        <td><%=a.getFee()%></td>
                        <td><%=a.getAdminPercentage()%></td>
                        <td><%=a.getBulkPercentage()%></td>
                        <td><%=a.getStartDate()%></td>
                        <td><%=a.getEndDate()%></td>
                        <td><%=a.getFileName()%></td>
                        </tr>
                    <%  } %> 

It works perfectly and I can see all the corresponding records for a particular licenseename on the page.

Then I wrote a html check box tag to check all the records that correspond to the particular licensee name as below.

html checkbox tag is <td >Select All <%=licenseeName%> <html:checkbox property="eventName" value="<%=licenseeName%>" onclick="check_all()"/></td>

I wrote a javscript function that checks all the checkboxes for the records returned by the above tag and I get an undefined alert. I believe the event variable I am defining in my JS function is not getting any thing.

function check_all()
 {
   var event=document.allocationForm.eventName.value;
   alert(event)
   for (var i=0;i<document.allocationForm.name.length;i++)
	{
		var e=document.allocationForm.name;
		alert(e.type);
		alert(e.value);
		if ((e.value == event) && (e.type=='checkbox'))
		{
			e.checked=true;
		}
	}
   
 }

[David Newton]

This is a JavaScript question--not Struts.

While it's inappropriate to discuss this question here, there's nothing in the code you posted named "eventName", so you haven't provided enough information to help anyway.

[sravani jetty]

David,

Sorry, For some reason I was thinking that the value is not being returned because of struts error. after I made this post, I figured that the problem lies in the check_all function call without any parameters, in html check box struts tag.

Eventname is a property that is set in actionform.

Thanks for your quick response and if you have the moderator rights, please feel free to move this to the javascript forums