更改记录后跳转到主页面的问题

写了个更改数据库记录的页面，但更改成功后跳不到主页面，只能手动点返回按钮才行，如何让它更改成功后自动跳转呢<?php                                                                       
$rs;                                                                                                    $strSQL;                                                                                                                                                                                                                      $ID=$_GET['ID'];                                                                       $strSQL="select * from contract where id=".$ID;                              
$rs=mssql_query($strSQL,$link);                                                                         
$rs_row=mssql_fetch_row($rs);                                                         ?>
<form method="POST" name="formAdd" action="" enctype="multipart/form-data">
<table width="595" border="0" align="center" cellpadding="0" cellspacing="0">
<tr>
    <td height="30" align="center" width="676"><table width=640 border=0 cellspacing=0 cellpadding=0 align=center>
<tr>
  <td width="189" align="right">
    <p align="right">名称：</td><td align=left height=22 width="447">
<input type="text" style="width: 400; height: 23" name="txtName" value="<?=$rs_row[2]?>" size="20"></td>
</tr>
<input type="submit" class="button2" value="更改" language=javascript name=btnOK onClick="window.location='Browse.php'">
<input name="Submit2" type="button" class="button2" onClick="window.open('Browse.php?refresh=1','_self','')" value=" 返回 ">
</table>
</form>
<?php                                                                         if ($_POST){                                                                                                              $name;                   
$name=$_POST[txtName];                                                                                
$strSQL="update contract set Name='".$name."';            
$strSQL.="where id=".$ID; 
$rs=mssql_query($strSQL,$link);                      
} 
?>   在更改确定按钮那里试了很多都没用，比如“document.location.href”"window.open"等方法，也不知道哪里出问题，请大家帮忙看看，谢谢