HTML代碼
<table border="1" cellpadding="0" cellspacing="0" width="800" id="tables">
<tr><td>參數名</td><td>參數值<input type="button" value="添加一行" onclick="addonerow()" /></td></tr>
<tr id="parameters"><td><input type="text" value="" id="parametername" name="parametername" /></td><td><input type="text" value="" id="parametervalue" name="parametervalue" /></td></tr>
</table>

JS代碼
function addonerow(){
?var mytable=document.getElementById("tables");
?var myrow=document.getElementById("parameters");
?if(navigator.userAgent.indexOf("Firefox") != - 1)
??? {
??mytable.tBodies[0].appendChild(myrow.cloneNode(true));
?}else{
??mytable.tBodies[0].insertBefore(myrow.cloneNode(true));
?}
}