HEAD <!-- JS --> <script type="text/javascript" src="prototype-1.5.0.js" charset="utf-8"></script> <script type="text/javascript" src="scriptaculous.js?load=builder,effects" charset="utf-8"></script> <script type="text/javascript" src="tooltips.js" charset="utf-8"></script> <!-- CSS --> <link rel="stylesheet" href="tooltips.css" media="screen" charset="utf-8" /> HTML <ul> <li><a href="#" title="ツー