'insertBefore()' Example
<html> <body> <script language="JavaScript"> function function1() { var myElement = document.createElement('<div style="width:300; height:200;background-color:blue;"></div>'); document.all.myDiv.insertBefore(myElement); } </script> <button id="myButton" onclick="function1();">Insert element</button> <div id="myDiv" style="width:300; height:200; border:solid black 1px;"> www.java2s.com </div> </body> </html>