<html>
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width,initial-scale=1,maximum-scale=1,user-scalable=0,maximum-scale=1">
    
    <title>gka-preview</title>
<link href="./gka.css" rel="stylesheet" type="text/css">
</head>
<body>

    <div class="gka-wrap">
        <div id="gka"></div>
    </div>
    <script>
    function preloadImage(names, cb, prefix){
        window.gkaCache = window.gkaCache || [];
        var n = 0,img,imgs = {};
        names.forEach(function(nam