'childNodes' Example
<html> <head> <script language="JavaScript"> function function1() { var m = document.all.myBody.childNodes; alert(m.length) } </script> </head> <body id="myBody"> <br> <hr> <p> <h1>www.java2s.com</h1> </p> <input id="myB" type="button" value="How many child nodes have this body element?" onclick="function1()"> </body> </html>