<script type="text/javascript">
function editTitle()
{
document.getElementById("title").innerHTML = document.getElementById("txt").value;
}
function editStyle()
{
document.getElementById("title").style.cssText = document.getElementById("style").value;
}
</script>
<body>
修改标题：<input id="txt" type="text" onkeyup="editTitle()" /><br>
显示样式：<span id="title"></span><br>
样式设置：<input id="style" type="text" onkeyup="editStyle()" />
</body>
