<html>
<head>
<meta http-equiv="content-type" content="text/html;charset=utf-8">
<title>画像カタログ</title>
<link rel="stylesheet" href="main.css" type="text/css">
<script type="text/javascript" src="prototype.js"></script>
<script type="text/javascript"><!--
maxCount = 9; // 一度に表示する最大枚数
function loadImageFile()
{
count = 1;
checkImage();
}
function checkImage()
{
var filename = "images/"+count+".jpg?cache="+(new Date()).getTime();
new Ajax.Request(filename, { method: "get",
onSuccess: function()
{
checkImage(count++);
$("imageArea").innerHTML = "Loading No = "+count;
},
onFailure:createCatalog
});
}
function createCatalog()
{
$("pageArea").innerHTML = "";
count--;
pageMax = Math.floor((count + maxCount - 1) / maxCount);
for (var i=1; i<=pageMax; i++)
{
var startNo = (i-1)*maxCount+1;
var endNo = startNo + maxCount;
var mod = count % maxCount;
if ((i == pageMax) && (mod > 0)) endNo = startNo + mod;
var aTag = "|<a href='javascript:viewImage("+startNo+","+endNo+")'>"+i+"</a>";
$("pageArea").innerHTML += aTag;
}
$("pageArea").innerHTML += "|";
viewImage(1,maxCount+1);
}
function viewImage(startNo, endNo)
{
$("imageArea").innerHTML = "";
for (var i=startNo; i<endNo; i++)
{
$("imageArea").innerHTML += "<img src='images/"+i+".jpg'>";
}
}
// --></script>
</head>
<body>
<h1>画像カタログ</h1>
<form>
<input type="button" value="画像ファイルを読み込み" onClick="loadImageFile()">
</form>
<div id="pageArea"></div>
<div id="imageArea"></div>
</body>
</html>
説明などは本書を参考にしてください。