Написать свой serialize для таблицы
<!DOCTYPE HTML>
<html lang="en-US">
<head>
<meta charset="UTF-8">
<title></title>
<script type="text/javascript" src=" https://ajax.googleapis.com/ajax/libs/jquery/1.6.1/jquery.min.js"></script>
</head>
<body>
<div align="center">
<table id="myTable" width="480" border="2">
<tr>
<td>1</td>
<td>11</td>
<td>21</td>
</tr>
<tr>
<td>2</td>
<td>12</td>
<td>22</td>
</tr>
<tr>
<td>3</td>
<td>13</td>
<td>23</td>
</tr>
<tr>
<td>4</td>
<td>14</td>
<td>24</td>
</tr>
<tr>
<td>5</td>
<td>15</td>
<td>25</td>
</tr>
</table>
</div>
<script type="text/javascript">
$.serializeTable = function ( tblElem, colName ) {
var $td = $("td", tblElem);
var len = 0;
if( $td.length ) {
len = $td.eq(0).parent().children( "td" ).length;
}
return $td.map(function( index ){
return colName[ index % len ] + "=" + decodeURIComponent( $(this).text() )
}).get().join("&")
}
alert( $.serializeTable( document.getElementById("meTable") , ["name1[]", "name2[]", "name3[]"] ) );
</script>
</body>
</html>