function insertTopicPath(leaf) {

	var result = "<a href=\"/\">明治学院大学 ホーム</a>&nbsp;&gt;&nbsp;";

	var url = document.URL;
	var tokens = url.split("/");
	var firstToken = tokens[3];
	var target = tokens[4];

	if (firstToken != null && firstToken == "video") {
		if (target == null || target == "" || target == "all") {
			result += "MG Video [動画コンテンツ]";
		} else if (target != "watch") {
			result += "<a href=\"/video/\">MG Video [動画コンテンツ]</a>&nbsp;&gt;&nbsp;";
			result += decodeURI(target);
		} else if (leaf != null) {
			result += "<a href=\"/video/\">MG Video [動画コンテンツ]</a>&nbsp;&gt;&nbsp;";
			result += leaf;
		}
		document.title = "MG Video [動画コンテンツ] | 明治学院大学";
	}

	var topicPathNode = document.getElementById("topicPathContainer");
	topicPathNode.innerHTML = result;

}