Header zentrieren

<div align="center">
<table border="0" width="60%" id="table1">
<tr>
<td>
<div align="center">
<style type="text/css">
<!-- table.edit_main_table{width: 100%;}
td.edit_main_tr{width: 100%;}
table.edit_second_table{width: 100%;}
td.edit_header_full{width: 100%;background-position:center;background-repeat:no-repeat; }
td.edit_header_full table{width: 100%;}
table.edit_third_table{width: 100%;}
table.edit_rechts_tabelle{width: 100%;}
-->
</style>