<script language=javascript>

var modified = 0;
var currentline = -1;
var line = -1;
var allcount = 4;

function adduploadfile()
{
  newrow = tablea.insertrow(tablea.rows.length);
  newrow.id = "fileuploadid";
  newrow.ln = allcount;
  newrow.pn = allcount;

  c1 = newrow.insertcell(0);
  c1.ln=allcount;
  c1.pn=allcount;
  c1.innerhtml = "<input type = file size=40 name='filename"+allcount+"' ln="+allcount+" pn="+allcount+">";

  c2=newrow.insertcell(1);
  c2.ln=allcount;
  c2.pn=allcount;
  c2.onclick=delit;
  c2.align = 'center';
  c2.innerhtml="删 除";

  c3=newrow.insertcell(2);
  c3.ln=allcount;
  c3.pn=allcount;
  c3.onclick=showpic;
  c3.align = 'center';
  c3.innerhtml="预 览";

  allcount++;
}

function delit()
{
line=parseint(event.srcelement.ln,10)
if (line>0)
  for (i=1; i<tablea.rows.length ; i++)
  {
   if (fileuploadid[i].ln==line )
   {
    var temp=eval("document.uploadform.filename"+line+".value");
    if ( temp.length>0 )
     {
      if (!confirm("确认删除此附件?"))  {  return;  }
     }
    tablea.deleterow(i);
    }
   }
}

function showpic()
{
line=parseint(event.srcelement.ln,10)
if (line>0)
  for (i=1; i<tablea.rows.length ; i++)
   if (fileuploadid[i].pn==line)
   {
    var temp=eval("document.uploadform.filename"+line+".value");
    if ( temp.length>0 )
     {
       c4=fileuploadid[i].insertcell();
       c4.align = 'center';
       c4.innerhtml="<img src='"+temp+"' width='50px' /> ";
       fileuploadid[i].pn = '';
     }
   }
}

</script>

<form name=uploadform method="post" enctype="multipart/form-data">

<table align=center border='1' id='tablea' width='800px' name='tablea'>
  <tr id=fileuploadid>
 
    <td width="40%" align=center> 附件列表 </td>
     
    <td width="20%" align=center> &nbsp; </td>

    <td width="20%" align=center> &nbsp; </td>

    <td width="20%" align=center> &nbsp; </td>
      
  </tr>   

</table>

<table align=center border=1 rules=all width="800px" nowrap>
       <tr>
         <td align=center>
           <input type="button" onclick="adduploadfile();" value="添  加">
         </td>
       </tr>
</table>
</form>