<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<head>
<script>
function createInput(){
var divObject = document.getElementById("txtArea");
divObject.innerHTML = "<input type='text' name='txtName' value='itcast'/>";
}
</script>
</head>
<body>
<input type="button" name="btnOK" value="创建" onclick="createInput(); ">
<div id="txtArea">
</div>
</body>
</html>