span的问题

Question

<SCRIPT LANGUAGE="javascript"> 
function Find(Ftext) 
{ 
  if (Ftext=="") 
  { 
      alert('请输入查找条件'); 
    form3.findtext.focus(); 
    return false; 
  } 
  var reg = /red/gi;
  var dr = new RegExp("("+Ftext+")",["gi"]) 
document.getElementById("findt").innerHTML = document.getElementById("findt").innerHTML.replace(reg,"black")
document.getElementById("findt").innerHTML = document.getElementById("findt").innerHTML.replace(dr," <font color=red>$1 </font>"); 
} </SCRIPT> 
<div  id="box" > <form action="" method="post" name="form3"> 
<table width="100%" border="1" align="center" cellpadding="0" cellspacing="0" bordercolor="#FFFFFF"> 
  <tr> 
    <td> <table width="100%" border="0" cellspacing="4" cellpadding="0"> 
        <tr> 
          <td width="17%" bgcolor="#FFFFFF"> <span class="style8">业务转办 
              <input name="Tj" type="hidden" id="Tj" value="where 1=1 and  Sp_shjg <= '1'"> 
          </span> </td> 
          <td width="53%" align="right" bgcolor="#FFFFFF"> <span class="style8"> 
            <input type="text" name="findtext" id="findtext"> 
            <input type="button" name="button5" id="button5" value="查找"  onClick="Find(document.getElementById('findtext').value)"> 
          </span> </td> 
          <td width="30%" align="right" bgcolor="#FFFFFF"> <input type="submit" name="button4" id="button4" value=" 保存 "> 
            <input type="button" name="button3" id="button3" value=" 取消 " onClick="closeMessage()"> </td> 
          </tr> 
        <tr> 
          <td colspan="3" bgcolor="#FFFFFF">当前经办人 <span class="STYLE7"> </span> </td> 
          </tr> 
        <tr> 
          <td colspan="3" bgcolor="#FFFFFF"> <span class="STYLE7">陈列 </span> </td> 
        </tr> 
        <tr> 
          <td colspan="3" bgcolor="#FFFFFF">选择经办人 </td> 
          </tr>            <tr> 
        
          <td colspan="3" bgcolor="#FFFFFF"> 
  <table width="100%" border="0" cellspacing="4" cellpadding="0"> 
<span id="findt" style="display:block;" > <tr> 
<input type="radio" name="mag_peo_id" id="radio" value="1">陈海坤 
<input type="radio" name="mag_peo_id" id="radio" value="2">陈毅明 
<input type="radio" name="mag_peo_id" id="radio" value="6">叶国裕 <input type="radio" name="mag_peo_id" id="radio" value="10">谢建南 
<input type="radio" name="mag_peo_id" id="radio" value="12">谢勇泉 
 <input type="radio" name="mag_peo_id" id="radio" value="63">孙瑞虾  
 <input type="radio" name="mag_peo_id" id="radio" value="153">陈朝晖 
 <input type="radio" name="mag_peo_id" id="radio" value="155">谢勇泉 
 <input type="radio" name="mag_peo_id" id="radio" value="156">韩辉明 
 </td>               </tr> 
              </span> 
            </table> 
</td> 
        </tr>       </table> </td> 
  </tr> 
</table> 
</form> 
</div style="background:#e3e3e3;padding:4px;margin:-2px;text-align:center"> 笨方法