如何用javascript填加表单

Question

<table width="100%" border="0" cellspacing="0" cellpadding="0" id="theTable">
          <tr> 
            <td id='aaa'><input type='text'></td>
          </tr>
</table><input type='button' value='添加一行' onclick="document.all.aaa.innerHTML += '<br><input type=\'text\'>'">

Answer 1

使用document.write 方法，例如
document.write ("<input type=text name=append >")

Answer 2

            <table width="95%" border="0" cellpadding="0" cellspacing="0" align="right">
              <tr> 
                <td class="l14" width="98%">&nbsp; </td>
              </tr>
              <tr> 
                <td class="l14" width="98%"> 
                  <table width="98%" border="0" align="center" cellpadding="0" cellspacing="0">
                    <tr> 
                      <td> 
  <table border="0" cellpadding="0" cellspacing="2" style="border-collapse: collapse; font-size:12px;" id="AutoNumber1">
  <form method="POST" name="smForm" action="">
    <tr>
      <td width="20%" align="right" valign=top>订单明细：</td>
      <td width="80%">
      <script language="javascript">
function setList()
{
str='';
if(!window.smForm.upcount.value)
window.smForm.upcount.value=1;
  for(i=1;i<=window.smForm.upcount.value;i++)
   str+='<INPUT type="text" id="txtNo'+i+'" name="txtNo'+i+'" size="27"> <INPUT type="text" id="txtNum'+i+'" name="txtNum'+i+'" size="27"> <INPUT type="text" id="txtRe'+i+'" name="txtRe'+i+'" size="27"><br>';
window.lstItem.innerHTML=str+'<br>';
}
</script>
<input type="text" name="upcount" value="5">
        <input type="button" name="Button" onclick="setList();" value="设定(C)" accesskey=c><span style="color:#ff4500">(有订单意向者填写)</span>
      </td>
    </tr>
    <tr>
<td colspan="2">
<TABLE WIDTH=100% BORDER=1 CELLSPACING=0 CELLPADDING=0 bordercolordark=White bordercolorlight=Black>
<TR align=center>
<TD>货号</TD>
<TD>数量</TD>
<TD>备注</TD>
</TR>
</TABLE>
</td>
    </tr>
    <tr>
<td colspan="2" id="lstItem">
<INPUT type="text" id="txtNo1" name="txtNum1"><INPUT type="text" id="txtNum1" name="txtNum1"><INPUT type="text" id="txtRe1" name="txtRe1">
</td>
    </tr>
    <tr>
<td colspan=2 align=center>
<input type="submit" value="发送邮件(S)" name="send" accesskey="s">
<input type="reset" value="重写(R)" name="reset" accesskey="r">
<span style="width:20px;"></span>
    </td></tr>
    </form>
    </table>
    </center>
    <script language="javascript">
setList();
</script>                      </td>
                    </tr>
                  </table>