Using java to get table rows (jsp and html)?

Question

I was wondering if there is any way to count rows from a html-table?
I want to know the number of rows created, just after it has been made. So that I can use this number 'for' creating my next table.
Have got this to work by using javascript code:
          function test2()
               if (!document.getElementsByTagName || !document.createTextNode) return;
          rows = document.getElementById('spesifikasjonsTabell').getElementsByTagName('tbody')[0].getElementsByTagName('tr');
          antallRader = rows.length;               
               document.test.hoyde.value = antallRader;
               return antallRader;
, but this only generates on the clientside; which is not what I want.
I got a webpage, that uses html and jsp. After the generation of a table - which has an unknown numbers of rows, because of several underlying tests - I'd like to retrive how many rows that was generated before I proceed with my next table.
Is there a good workaround to this problem?
P�l
Message was edited by:
paulOlsen

Answer 1

Hey there, and thanks for fast response.
Allready tried that code earlier. Works great on displaying the var 'row'-s inside, for instance, a <input type="text" or as a pup-up on a alert();
The javascript works on the client-side, so I have no way of using that code for further testing in codes for my viewing; at least I can't think of any.
The thing is that:
1) I can't use an 'onClick', since the next table should be generated without any human interference.
2) I used the same code to get the number of rows when I sat the table inside a form. But then, when calling the javascript function, I have no way to retrieve the linenumbers for use to test ON the next table.
Since I'd have to use, say a field name <input type hidden="rows".., a method to call this very "rows" in jsp:
<table>
<!-- lots of rows -->
</table>
<%
int numberOfRows = request.Parameter("rowcount") or what ever; here is where I need the 'number of rows'
// let's just say int here though a String
if(numberOfRows < 35)
%>
<table>
<!-- Im including this table if the test above occurs -->
</table>
<%
else
%>
<!-- if this occurs, then I'd like to do something else -->
<%
%>
Any ideas?
P�l
Message was edited by:
paulOlsen
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