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<link rel="stylesheet" type="style/css" href="adventure.css"></link>
    <script src="adventure.js"></script>
</head>
<body>
    <button onclick=log("testing")>Click Me</button>
    <div id="box">
        <div id="out"></div>
    </div>
</body>

function Gid(id) {
return getElementById(id);
}
function log(s) {
    Gid("out").innerHTML = s + "<br>" +
    Gid("out").innerHTML;
}

#box {
    width:500px;
    height:300px;
    border:5px solid black;
    overflow:auto;
}
#out {
    width:500px;
}