Building dynamic links with client-side JavaScript

["Mayne, Peter" <Pe...@ap.spherion.com>]

I'm trying to use the tree menu at http://www.treemenu.com/ to build a
client-side menu. This is done by using JavaScript code in the browser:

menu = new MTMenu();
menu.addItem('Item1');
sub = new MTMenu();
sub.addItem('subItem1', url1);
sub.addItem('subItem2', url2);
menu.makeLastSubmenu(sub);

The catch is figuring out what the URLs are. The additem() method takes a
URL and builds an <a> by hand.

Currently I'm doing this to let Tapestry build an <a>, then extract the URL
from it:

function undoHref(a)
{
  var p = a.indexOf('"');
  var q = a.indexOf('"', p+1);
  var href = a.slice(p+1, q);
  return href;
}

pg  = undoHref('<a jwcid="@PageLink" page="ThePage">text</a>');
sub.addItem("subItem3", pg);

Tapestry doesn't seem to mind that the link in a string in a script.
However, this seems rather awkward.

I've looked for a way of just generating a URL for a page, but can't find
one (which may just mean I haven't looked hard enough). Is there a better
way of integrating client-side script and URL generation with Tapestry?

Thanks.

PJDM
-- 
Peter Mayne
Technology Consultant
Spherion Technology Solutions
Level 1, 243 Northbourne Avenue, Lyneham, ACT, 2602
T: 61 2 62689727  F: 61 2 62689777

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