添加文本框,并将所有文本框的值写入数据库怎么弄？

我要批量添加文本框，就像有的批量上传一样。右边有个按钮，点一下就出现一个FileUpload控件。我现在要增加的文本框控件，然后获取所以文本框中的值，写入数据库怎么弄？？？
<script   language="javascript">                                   
  function   add()                                   
  {   
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        proportion   =   new   Array();                           
        str='<table>';   
        str=str+'<tr   align=center   valign=middle   bgcolor=#FFFFFF>';   
        str=str+'<td   width="100%"   height="25"><input   type="text"   name=proportion></td>';   
        str=str+'<td   width="100%"   height="25"><input   type="button"   name=del   onclick="this.parentNode.parentNode.parentNode.deleteRow(this.parentNode.parentNode.rowIndex)"   value="删除"></td>';   
        str=str+'</tr></table>';   
        window.upid.innerHTML+=str+'';   
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  <head>   
  <title>Untitled   Document</title>   
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  <form   name="myform"   onsubmit="javascript:return   check()">       
        <table>       
                <tr>           
                        <td>     
                                <input   name="Submit2"   type="button"   onclick="javascript:add()"   value="增加">       
                        </td>           
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