JS操作表格（兼容IE，FF，CHROME）

<script>

var clearObject=null;

var count=0;

function add()

{

var table=document.getElementById("mytable");

var tr = table.insertRow(table.rows.length);

var td=tr.insertCell(0);

td.innerHTML="sadf";

count++;

if(count>10)

{

window.clearInterval(clearObject);

}

}

function setTime()

{

clearObject=window.setInterval("add()",1000);

}

</script>

<table id="mytable">

<input type="button" value="添加行" onclick="setTime()" />