var heads;
function click_on_head(tabno) {
  heads[tabno].show_text.style.display = 'block';
  heads[tabno].style.backgroundColor = '#DDDDDD';
  for (var j = 0; j < heads.length; j++) {
    if (j != tabno) {
      heads[j].show_text.style.display = 'none';
      heads[j].style.backgroundColor = '#FFFFFF';
    }
  }
  return null;
}
function setup_heads() {
  heads = getElementsByClass('tab',document.getElementById('shipping'));
  var left_pos = 0;
  var left_incr = 16.5;
  var i;
  outer:
  for (i = 0; i < heads.length; i++) {
    heads[i].style.left = left_pos + '%';
    heads[i].style.cursor = 'pointer';
    left_pos = left_pos + left_incr
    var nextS = heads[i].nextSibling;
    var divs = new Array;
    inner:
    while (nextS) {
      if (nextS.tagName) {
        if (nextS.tagName == 'DIV') break inner;
      }
      nextS = nextS.nextSibling;
    }
    if (nextS) {
      nextS.style.display = 'none';
      heads[i].show_text = nextS;
      eval('heads[i].onclick = function(){ click_on_head(' + i + ')}');
      nextS.innerHTML = '<h4>' + heads[i].innerHTML + "</h4>\n" + nextS.innerHTML;
    }
  }
  click_on_head(0);
}
addLoadEvent(setup_heads);