JavaScript document all 属性

JavaScript document all 属性

<html>

   <head>
      <title> Document Title </title>

      <script type = "text/javascript">
         <!--
            function myFunc() {
               var ret = document.all["heading"];
               alert("Document Heading : " + ret.innerHTML );

               var ret = document.all.tags("P");;
               alert("First Paragraph : " + ret[0].innerHTML);
            }
         //-->
      </script>

   </head>
   <body>
      <h1 id = "heading">This is main title</h1>
      <p>Click the following to see the result:</p>

      <form id = "form1" name = "FirstForm">
         <input type = "button" value = "Click Me" onclick = "myFunc();" />
         <input type = "button" value = "Cancel">
      </form>

      <form d = "form2" name = "SecondForm">
         <input type = "button" value = "Don't ClickMe"/>
      </form>

   </body>
</html>