/// <summary>
/// Gets the DOM id of a node relative to this node, as defined by us.
/// </summary>
///
/// <remarks>The DOM id is the index of the given node in a depht-first search
/// of the DOM tree. It is designed to give a good enough reference to a node
/// that does not have an id attribute. This fails more or less depending on
/// the amout of dynamic content inside the page.</remarks>
/// <param name="root">Root element where to begin the search</param>
/// <param name="node">Node to search for.</param>
/// <returns>The DOM id of the node, or 0 if not found</returns>
public static int GetDomId(this GeckoNode root, GeckoNode node)
{
int i = 0;
foreach (var iter in root.TraverseDom ())
{
i++;
if (node.Equals (iter))
return i;
}
return 0;
}
