<table width="100%" border="1" cellspacing="0" cellpadding="3" id="oTable">
<tr>
<td height="25"><input name="bf" type="file" size="40"> &nbsp; &nbsp; <input type="button" value="추가" onclick="javascript:addFiles()"></td>
</tr>
</table>


<script language="JavaScript">
<!--
var oTBody = document.createElement("TBODY");
var oRow;
var oCell;

oTBody.bgColor = "#FFFFFF";
oTBody.align   = "left";
oTable.appendChild(oTBody);

function addFiles() {
 oRow = document.createElement("TR");
 oTBody.appendChild(oRow);

 //번호
 oCell = document.createElement("TD");
 oCell.innerHTML = '<input name="bf" type="file" size="40"> &nbsp; &nbsp; <input type="button" value="추가" onclick="javascript:addFiles()">' ;
 oRow.appendChild(oCell);
}
//-->
</script>