$.fn.deactivate = function() {
  return this.each(function() {
	var path_p = $(this).children('img').attr("src").split('/');
	path_p[2] = 'inactive';
	$(this).children('img').attr("src", path_p.join("/"));
	$(this).removeClass('active');
  });
};

$.fn.activate = function() {
  return this.each(function() {
	var path_p = $(this).children('img').attr("src").split('/');
	path_p[2] = 'active';
	$(this).children('img').attr("src", path_p.join("/"));
	$(this).addClass('active');
  });
};

function preloadNavImages()
{
	$("a.switch-content img").each(function(i) {
		path = $(this).attr("src").split("/");
		path[2] = 'inactive';
		i_path = path.join("/");
		jQuery("<img>").attr("src", i_path);
	});
}