请教一个javascript效果。

style="display: none" + setTimeout 应该可以实现

解决方案 »

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<HTML>
<HEAD>
<SCRIPT LANGUAGE="JavaScript">
function display(){
c1 = document.getElementById('c1') ;
setTimeout( 'c1.style.display = "none"', 3000);
}</SCRIPT>
</head>
<body  onload=display()>
<form name="form1" method="post" action="">
  <input type="button" name="Submit" id="c1" value="按钮">
</form>
</body>
</html>
多谢！
为什么我改成：
<HTML>
<HEAD>
<SCRIPT LANGUAGE="JavaScript">
function display(){
c1 = document.getElementById('c1') ;
setTimeout( 'c1.style.display = "none"', 3000);
}
</SCRIPT>
</head>
<body  onload=display()>
<table id="c1">
<tr><td>fdsa</td></tr>
</table>
</body>
</html>
不会有效果呢？
<HTML>
<HEAD>
<SCRIPT LANGUAGE="JavaScript">
function display(){
setTimeout( 'c1.style.display = "none"', 3000);
}
</SCRIPT>
</head>
<body  onload=display()>
<table id="c1">
<tr><td>fdsa</td></tr>
</table>
</body>
</html>
<HTML>
<HEAD>
<SCRIPT LANGUAGE="JavaScript">
function display(){
c1 = document.getElementById('c1') ;
setTimeout( 'c1.style.display = "none"', 3000);
}</SCRIPT>
</head>
<body  onload=display()><form name="form1" method="post" action="">
<img src="111.jpg"  id="c1">
</form>
</body>
</html>
非常感谢！
顺便再问问document.getElementById('c1')这一句是什么意思？为什么对form和img元素都起作用，而对table却不起作用呢？
请教！谢谢！
<HTML>
<HEAD>
<SCRIPT LANGUAGE="JavaScript">
function display(){
var c2 = document.getElementById('c1') ;
//alert(c2.style.display=="");
if(c2.style.display=="")
c2.style.display="none";
else
c2.style.display="";
window.setTimeout(display, 500);
}
</SCRIPT>
</head>
<body  onload=display()>
<table id="c1" style="display:">
<tr><td><font color="blue"><b>code by meixx</b></font></td></tr>
</table>
</body>
</html>
<HTML>
<HEAD>
<SCRIPT LANGUAGE="JavaScript">

</SCRIPT>
</head>
<body><form name="form1" method="post" action="">
<img src="111.jpg"  id="c1">
</form>
<script>setTimeout('mhide',3600);</script>
</body>
</html>