<td>描述:<input type="text" name="t1" size="60"> 系数:<input type="text"name="x1" size="4">
<br>
<input name="btn" type="button" class="bk" value="继续添加">
<td>
----------------------
改为:
<td>描述:<input type="text" id="t1" size="60"> 系数:<input type="text"name="x1" size="4">
<br>
<input name="btn" type="button" class="bk" value="继续添加" onclick="add()">
<td><script>
function add()
{
string str="<td>描述:<input type='text' name='t2' size='60'> 系数:<input type='text'name='x2' size'4'><br>"
var e=document.createElement(str);
document.t1.insertBefore(e);
}
</script>
<br>
<input name="btn" type="button" class="bk" value="继续添加">
<td>
----------------------
改为:
<td>描述:<input type="text" id="t1" size="60"> 系数:<input type="text"name="x1" size="4">
<br>
<input name="btn" type="button" class="bk" value="继续添加" onclick="add()">
<td><script>
function add()
{
string str="<td>描述:<input type='text' name='t2' size='60'> 系数:<input type='text'name='x2' size'4'><br>"
var e=document.createElement(str);
document.t1.insertBefore(e);
}
</script>
<tr>
<td>描述:<input type="text" name="t1" size="60"> 系数:<input type="text"name="x1" size="4"><td>
</tr>
<tr>
<td>
<input name="addRow" type="button" class="bk" value=" 添加 " onclick="addRow()">
<input name="delRow" type="button" class="bk" value=" 删除 " onclick="delRow()">
</td>
</tr>
</table>
<script language="javascript">
var i=1;
var table=document.getElementById("myTable");
function addRow()
{
i++;
var len=table.rows.length;
table.insertRow(len-1);
var td=table.rows[len-1].insertCell();
td.innerHTML="描述:<input type='text' name='t"+i+"' size='60'> 系数:<input type='text' name='x"+i+"' size='4'>";
document.getElementById("delRow").disabled=false;
}
function delRow()
{
if(i>1)
{
table.deleteRow(i-1);
i--;
}
if(i<2)
document.getElementById("delRow").disabled=true;
}
window.onload=function()
{
document.getElementById("delRow").disabled=true;
}
</script>
String[] t1 = request.getParameterValues("t1");
String[] x1 = request.getParameterValues("x1");