Event.observe( window, 'load', function(){
  var padding = 2; 
  var navWidth = $('main_nav').getWidth() + padding;
  var subnavWidth = 0;

  if($('main_nav_1'))
    subnavWidth = $('main_nav_1').getWidth() + padding;

  // Set frame width to whichever is bigger
  if(subnavWidth > navWidth)
    navWidth = subnavWidth;

  // Set the left column size
  var rightColumnWidth = $('right_column').getWidth(); // Fetch right column size
  var leftColumnWidth = ((navWidth - rightColumnWidth) / 100) * 90;
  $('left_column').setStyle({width: leftColumnWidth + "px"});
  $('frame').setStyle({width: navWidth + "px"});
  $('frame').setStyle({display: "none", visibility: "visible"});
  Effect.Appear('frame');
});

function activateToolboxLink(id) {
    currents = $$('#toolbox_nav li.current')
    for (var i=0; i<currents.length; i++) {
      c = currents[i];
      c.removeClassName('current');
    }
    $(id).addClassName('current');
}