JavaScript 自动动画

JavaScript 自动动画

<html>

   <head>
      <title>JavaScript Animation</title>

      <script type = "text/javascript">
         <!--
            var imgObj = null;
            var animate ;

            function init() {
               imgObj = document.getElementById('myImage');
               imgObj.style.position= 'relative';
               imgObj.style.left = '0px';
            }

            function moveRight() {
               imgObj.style.left = parseInt(imgObj.style.left) + 10 + 'px';
               animate = setTimeout(moveRight,20);    // call moveRight in 20msec
            }

            function stop() {
               clearTimeout(animate);
               imgObj.style.left = '0px';
            }

            window.onload = init;
         //-->
      </script>
   </head>

   <body>

      <form>
         <img id = "myImage" src = "/images/html.gif" />
         <p>Click the buttons below to handle animation</p>
         <input type = "button" value = "Start" onclick = "moveRight();" />
         <input type = "button" value = "Stop" onclick = "stop();" />
      </form>

   </body>
</html>