<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "
http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="
http://www.w3.org/1999/xhtml">
<HEAD>
<SCRIPT>
function insertElement() {
var nod=document.createElement("B");
document.all['div1'].insertBefore(nod);
nod.innerText="插入一个新的B元素.";
}
</SCRIPT>
</HEAD>
<BODY>
<DIV ID='div1' onclick="insertElement()">
点击这里，插入粗体文字.
</DIV>
</BODY>
