<!DOCTYPE HTML> <html> <head> <script type="text/javascript"> function boom() { var a = document.getElementById("a"); var b = document.getElementById("b"); a.insertBefore(b, a.firstChild); } </script> </head> <body onload="boom();"><span id="a"><div></div></span><span id="b"><span style="display: none;"></span><span style="display: none;"></span></span></body> </html>