思路：获取行对象→获取列对象→使用innerHTML为单元格添加超链接内容，实例演示如下：
1、HTML结构
<table id = "test"><tr><td>1</td><td>1</td><td>2</td><td>3</td></tr>
<tr><td>2</td><td>4</td><td>5</td><td>6</td></tr>
<tr><td>3</td><td>7</td><td>8</td><td>9</td></tr>
<tr><td>4</td><td>1</td><td>2</td><td>3</td></tr>
</table>
第<input type="text" id="row">行第<input type="text" id="col">列<input type='button' value='确定' onclick="fun()"/>
2、javascript代码
function fun(){row = document.getElementById("row").value - 1
col = document.getElementById("col").value - 1
tr = document.getElementById("test").getElementsByTagName("tr")
td = tr[row].getElementsByTagName("td")[col]
td.innerHTML = "<a href='#'>超链接</a>"
}
3、效果演示
<html><head>
<title>滚动链接</title>
</head>
<script language="JavaScript1.2">
//设置下面的三行参数，分别是宽度、高度和背景色。
var scrollerwidth=150
var scrollerheight=60
var scrollerbgcolor='white'
//下面设置显示的文字内容，可以使用标准的HTML语法。
var messages=new Array()
messages[0]="<a href='http://www.baidu.com/'>百度</a>"
messages[1]="<a href='http://www.sina.com'>新浪</a>"
messages[2]="<a href='http://www.google.com/'>谷歌</a>"
if (messages.length>1)
i=2
else
i=0
function move1(whichlayer){
tlayer=eval(whichlayer)
if (tlayer.top>0&&tlayer.top<=5){
tlayer.top=0
setTimeout("move1(tlayer)",3000)
setTimeout("move2(document.main.document.second)",3000)
return
}
if (tlayer.top>=tlayer.document.height*-1){
tlayer.top-=5
setTimeout("move1(tlayer)",100)
}
else{
tlayer.top=scrollerheight
tlayer.document.write(messages[i])
tlayer.document.close()
if (i==messages.length-1)
i=0
else
i++
}
}
function move2(whichlayer){
tlayer2=eval(whichlayer)
if (tlayer2.top>0&&tlayer2.top<=5){
tlayer2.top=0
setTimeout("move2(tlayer2)",3000)
setTimeout("move1(document.main.document.first)",3000)
return
}
if (tlayer2.top>=tlayer2.document.height*-1){
tlayer2.top-=5
setTimeout("move2(tlayer2)",100)
}
else{
tlayer2.top=scrollerheight
tlayer2.document.write(messages[i])
tlayer2.document.close()
if (i==messages.length-1)
i=0
else
i++
}
}
function move3(whichdiv){
tdiv=eval(whichdiv)
if (tdiv.style.pixelTop>0&&tdiv.style.pixelTop<=5){
tdiv.style.pixelTop=0
setTimeout("move3(tdiv)",3000)
setTimeout("move4(second2)",3000)
return
}
if (tdiv.style.pixelTop>=tdiv.offsetHeight*-1){
tdiv.style.pixelTop-=5
setTimeout("move3(tdiv)",100)
}
else{
tdiv.style.pixelTop=scrollerheight
tdiv.innerHTML=messages[i]
if (i==messages.length-1)
i=0
else
i++
}
}
function move4(whichdiv){
tdiv2=eval(whichdiv)
if (tdiv2.style.pixelTop>0&&tdiv2.style.pixelTop<=5){
tdiv2.style.pixelTop=0
setTimeout("move4(tdiv2)",3000)
setTimeout("move3(first2)",3000)
return
}
if (tdiv2.style.pixelTop>=tdiv2.offsetHeight*-1){
tdiv2.style.pixelTop-=5
setTimeout("move4(second2)",80)
}
else{
tdiv2.style.pixelTop=scrollerheight
tdiv2.innerHTML=messages[i]
if (i==messages.length-1)
i=0
else
i++
}
}
function startscroll(){
if (document.all){
move3(first2)
second2.style.top=scrollerheight
}
else if (document.layers){
move1(document.main.document.first)
document.main.document.second.top=scrollerheight+5
document.main.document.second.visibility='show'
}
}
window.onload=startscroll
</script><ilayer id="main" width="&{scrollerwidth}" height="&{scrollerheight}" bgcolor="&{scrollerbgcolor}"><layer id="first" left="0" top="1" width="&{scrollerwidth}"><script
language="JavaScript1.2">
if (document.layers)
document.write(messages[0])
</script></layer><layer id="second" left="0" top="0" width="&{scrollerwidth}" visibility="hide"><script language="JavaScript1.2">
if (document.layers)
document.write(messages[1])
</script></layer></ilayer><script
language="JavaScript1.2">
if (document.all){
document.writeln('<span id="main2" style="position:relativewidth:'+scrollerwidth+'height:'+scrollerheight+'overflow:hidenbackground-color:'+scrollerbgcolor+'">')
document.writeln('<div style="position:absolutewidth:'+scrollerwidth+'height:'+scrollerheight+'clip:rect(0 '+scrollerwidth+' '+scrollerheight+' 0)left:0top:0">')
document.writeln('<div id="first2" style="position:absolutewidth:'+scrollerwidth+'left:0top:1">')
document.write(messages[0])
document.writeln('</div>')
document.writeln('<div id="second2" style="position:absolutewidth:'+scrollerwidth+'left:0top:0">')
document.write(messages[1])
document.writeln('</div>')
document.writeln('</div>')
document.writeln('</span>')
}
</script>
<body>
</body>
</html>
(北京八方永信教育)
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