請把以下的編碼放於<head></head>之內
<script language="JavaScript">
<!--
function MM_swapImgRestore() { //v3.0
var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}
function MM_preloadImages() { //v3.0
var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}
function MM_findObj(n, d) { //v4.01
var p,i,x; if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
if(!x && d.getElementById) x=d.getElementById(n); return x;
}
function MM_swapImage() { //v3.0
var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}
//-->
</script>
請把以下的編碼放於<body></body>之內
<body onLoad="MM_preloadImages('content1_2.gif','content2_2.gif')" bgproperties=fixed> //content1_2.gif等圖檔是滑鼠變換後的影像
<p><a href="index1.htm" onMouseOut="MM_swapImgRestore()"
//index1.htm是你的超連結 onMouseOver="MM_swapImage('Image1','','content1_2.gif',1)"
target="mainFrame"><img name="Image1" border="0"
src="content1_1.gif" width="88" height="31"></a>
//content1_1.gif是滑鼠變換前的影像
</p>
<p><a href="intro.htm" onMouseOut="MM_swapImgRestore()" onMouseOver="MM_swapImage('Image2','','content2_2.gif',1)" target="mainFrame"><img name="Image2" border="0" src="content2_1.gif" width="88" height="31"></a>
</p>
//要再加按鈕,在上面body onLoad="MM_preloadImages()的括號內加要變換的圖檔,再複製之後的code打圖檔的名稱更改便可。