上下弹动的导航条

2009-11-23 导航菜单 168℃

要完成此效果把如下代码加入到<body>区域中
<div id="point1" STYLE="position:absolute;visibility:visible;">
<table width="120" border="1" bordercolor="#000000" cellspacing="0" cellpadding="4" bgcolor="#CCFFCC">
<tr>
<td align=center>
<a href="http://www..com/" target="_blank">
<img src="http://www..com/UploadPic/userface/no1323.jpg" border=0 alt="javascript Fairyland" width="88" height="31" onload="return imgzoom(this,600);" onclick="javascript:window.open(this.src);" style="cursor:pointer;"/>
</a>
</td>
</tr>
<tr>
<td align=center>
<font size="2"><a href="#" target="_blank"><font color="#FF3399">LINK</font></a></font>
</td>
</tr>
<tr>
<td align=center>
<font size="2"><a href="#" target="_blank"><font color="#FF3399">LINK</font></a></font>
</td>
</tr>
<tr>
<td align=center>
<font size="2"><a href="#"><font color="#FF3399">LINK</font></a></font>
</td>
</tr>
<tr>
<td align=center>
<font size="2"><a href="#"><font color="#FF3399">LINK</font></a></font>
</td>
</tr>
<tr>
<td align=center>
<font size="2"><a href="#"><font color="#FF3399">LINK</font></a></font>
</td>
</tr>
</table>
</div>
<script LANGUAGE="javascript1.2">
var XX=10;
var xstep=1;
var delay_time=30;
var YY=0;
var ch=0;
var oh=0;
var yon=0;
var ns4=document.layers?1:0
var ie=document.all?1:0
var ns6=document.getElementById&&!document.all?1:0
if(ie){
YY=document.body.clientHeight;
point1.style.top=YY;
}
else if (ns4){
YY=window.innerHeight;
document.point1.pageY=YY;
document.point1.visibility="hidden";
}
else if (ns6){
YY=window.innerHeight
document.getElementById('point1').style.top=YY
}
function reloc1()
{
if(yon==0){YY=YY-xstep;}
else{YY=YY+xstep;}
if (ie){
ch=document.body.clientHeight;
oh=point1.offsetHeight;
}
else if (ns4){
ch=window.innerHeight;
oh=document.point1.clip.height;
}
else if (ns6){
ch=window.innerHeight
oh=document.getElementById("point1").offsetHeight
}
if(YY<0){yon=1;YY=0;}
if(YY>=(ch-oh)){yon=0;YY=(ch-oh);}
if(ie){
point1.style.left=XX;
point1.style.top=YY+document.body.scrollTop;
}
else if (ns4){
document.point1.pageX=XX;
document.point1.pageY=YY+window.pageYOffset;
}
else if (ns6){
document.getElementById("point1").style.left=XX
document.getElementById("point1").style.top=YY+window.pageYOffset
}
}
function onad()
{
if(ns4)
document.point1.visibility="visible";
loopfunc();
}
function loopfunc()
{
reloc1();
setTimeout('loopfunc()',delay_time);
}
if (ie||ns4||ns6)
window.onload=onad
</script>

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