function add_search_plugin(name, cat, root, icon_ext)
{
	if ((typeof(window.sidebar) == "object") && (typeof(window.sidebar.addSearchEngine) == "function"))
		window.sidebar.addSearchEngine(root + "/" + name + ".src", root + "/" + name + "." + icon_ext, name, cat);
	else
		alert("Sorry, Mozilla Firefox is required to install this search plugin.");
}

function add_cr_search_plugin ()
{
	add_search_plugin("criticalreview", "Web", "http://www.thecriticalreview.org/searchplugin", "png");
}