/*
 * yuga.js 0.1.0 - 優雅なWeb制作のためのJS
 *
 * Copyright (c) 2006 Kyosuke Nakamura (kyosuke.jp)
 * Licensed under the MIT License:
 * www.opensource.org/licenses/mit-license.php
 *
 * Since:     2006-10-30
 * Modified:  2006-11-15
 */

/*
 * [使用方法] XHTMLのhead要素内で次のように読み込みます。
 
<link rel="stylesheet" href="css/thickbox.css" type="text/css" media="screen" />
<script type="text/javascript" src="js/jquery.js"></script>
<script type="text/javascript" src="js/interface.js"></script>
<script type="text/javascript" src="js/thickbox.js"></script>
<script type="text/javascript" src="js/yuga.js" charset="utf-8"></script>

 */

var yuga = {
	preloader: {
		loadedImages: [],
		load: function (url){
			var img = this.loadedImages;
			var l = img.length;
			img[l] = new Image();
			img[l].src = url;
		}
	},
	uri: {
		dirName: function(uri){
			var ary = uri.split('/');
			ary.pop();
			return ary.join('/');
		},
		path: function (uri){
			return uri.split('#')[0];
		},
		anchorName: function (uri){
			return uri.split('#')[1];
		},
		isSelfLink: function(href){
			return ((this.path(href) == this.path(location.href)) || (this.path(href) == this.dirName(location.href)+'/'));
		}
	}
};

$(function(){
	
	//リンク画像はロールオーバーを設定
	//alert($('a img.btn'))
	if ($('a img.btn')) {
		$('a img.btn').each(function(){
			this.originalSrc = $(this).src();
			this.rolloverSrc = this.originalSrc.replace(/(\.gif|\.jpg|\.png)/, "_on$1");
			yuga.preloader.load(this.rolloverSrc);
		}).hover(function(){
			$(this).src(this.rolloverSrc);
		},function(){
			$(this).src(this.originalSrc);
		});
	}
});