<script type="text/javascript"> var i = 1; var n; function showImg() {
if (document.getElementById('img').getAttribute("src") == "images/1.jpg") { document.getElementById('img').setAttribute("src","images/2.jpg"); } else { document.getElementById('img').setAttribute("src","images/1.jpg"); } }
function showImg1() { document.getElementById('img').setAttribute("src", "images/" + i + ".jpg"); i++; if (i > 10) { i = 1; } }
function show() { n=setInterval(showImg1, 500); }
function show1() { clearInterval(n); } </script>
</head> <body> <img id="img" alt="" src="images/1.jpg" width="200" height="200" /> <input id="Button1" type="button" value="换图片" onclick="showImg()" /> <input id="Button2" type="button" value="切图" onclick="showImg1()" /> <input id="Button3" type="button" value="轮换" onclick="show()" /> <input id="Button4" type="button" value="停止轮换" onclick="show1()" />
</body> </html>