window.onload

<!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>
	<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
	<title>JavaScript</title>
	<script type="text/javascript">
	window.onload = function(){
		var domObj = document.getElementById("dom");
		domObj.style.color = "red";
	}
	</script>
</head>
<body>
	<h1 id="dom">JavaScript</h1>
</body>
</html>

页面上所有的dom节点，窗体加载完成以后执行function方法。

参考别人的视频教程写的。

Meet so Meet. C plusplus I-PLUS....