javascript ถามเรื่อง popup windows ครับ แบบคืนค่า อยากได้ code ตัวอย่างครับพอมีรึเปล่าตัวอย่าง

<form name="form1" action="" method="post">
<table width="60%" border="0" cellpadding="0" cellspacing="1" bgcolor="#ECFFFF" class="Mytable">
            
            <tr>
              <td colspan="2" align="center" valign="top" class="header">Application </td>
              </tr>
            <tr>
              <td align="right" valign="top" class="font">Server Name: </td>
<td align="left" valign="top">
<select  name="server_id_select" id="server_id_select" onChange="list_namesub(this.value);"> 
			  <option value="00" selected="selected">-เลือก-</option>
			  				<?php $SQL="SELECT*FROM server ORDER BY server_id  ASC";
										$rs=$db->Execute($SQL)or die('ERROR1');
										   while(!$rs->EOF){
										   		$result=$rs->fields;
										   		$server_id_select=$result['server_id'];
												$server_name=$result['server_name'];
												$asset_num=$result['asset_num'];
										   if($server_id_select==$server_id){
							?>
<option value="<?php echo $server_id_select;?>" selected="selected"><?php echo $server_name; ?></option>
<?php }else{?>
 <option value="<?php echo $server_id_select;?>"><?php echo $server_name; ?></option>
						  <?php
						      }
						   $rs->MoveNext();
						  }
						  ?>
		    		</select>
<span class="Asterisk">*</span></td>
            </tr>
            <tr>
              <td align="right" valign="top" class="font">Application Name:</td>
              <td align="left" valign="top"><span class="style2">
                <select name="app_typeid" size="1" class="TEXT" id="app_typeid">
                  <option  value="00" selected="selected">-เลือก -</option>
                  <?
					    $SQL="SELECT * FROM  tb_apptype";
						 $Rs=$db->Execute($SQL) or die($SQL);
						 $NumCnt=$Rs->NumRows();
						while (!$Rs->EOF){
						$Result=&$Rs->fields;
						$apptype_id=$Result['apptype_id'];
						$apptype=$Result['apptype'];

					  ?>
                  <option  value="<? echo $apptype_id; ?>"><? echo $apptype;?></option>
                  <?
						$Rs->MoveNext();
 						 }//end while
	 					$Rs->Close();

						?>
                </select>
              </span><span class="Asterisk">*  </span><span class="font">
<?php /*ตัวนี้เป็นตัวที่ทำให้เกิด popup นะครับ*/?>
<a href="javascript:void(0)" onclick="window.open('add_app_user.php','Add_application','width=405,height=150')" style="text-decoration:none">เพิ่ม Application Name</a></span></td>
            </tr>
            <tr>
              <td align="right" valign="top" class="font">Username:</td>
              <td align="left" valign="top"><input name="username" type="text" id="username" maxlength="50" />
                <span class="Asterisk">*</span></td>
            </tr>
            <tr>
              <td align="right" valign="top" class="font">Password:</td>
              <td align="left" valign="top"><input name="password" type="text" id="password" maxlength="15" />
                <span class="Asterisk">*</span></td>
            </tr>
            <tr>
              <td align="right" valign="top" class="font">สถานะผู้ใช้งาน:</td>
              <td align="left" valign="top"><select name="status">
                <option value="00" selected="selected">-เลือก-</option>
                <option value="User">User</option>
                <option value="Admin">Admin</option>
              </select>
                <span class="Asterisk">*</span></td>
            </tr>
            <tr>
              <td align="right" valign="top" class="font">Operating System Type:</td>
              <td align="left" valign="top"><span class="style2">
                <select name="ostype_id" size="1" class="TEXT" id="ostype_id">
                  <option  value="00" selected="selected">-เลือก -</option>
                </select>
                <span class="Asterisk">*</span></span></td>
            </tr>
            <tr>
              <td align="right" valign="top" class="font">Database Type:</td>
              <td align="left" valign="top"><span class="style2">
                <select name="dbtype_id" size="1" class="TEXT" id="dbtype_id">
                  <option  value="00" selected="selected">-เลือก -</option>
                  <?
					    $SQL="SELECT * FROM  tb_dbtype";
			
						 $Rs=$db->Execute($SQL) or die($SQL);
						 $NumCnt=$Rs->NumRows();
						while (!$Rs->EOF){
						$Result=&$Rs->fields;
						$dbtype_id=$Result['dbtype_id'];
						$dbtype=$Result['dbtype'];

					  ?>
                  <option  value="<? echo $dbtype_id; ?>"><? echo $dbtype;?></option>
                  <?
						$Rs->MoveNext();
 						 }//end while
	 					$Rs->Close();

						?>
                </select>
                <span class="Asterisk">*</span>              </span></td>
            </tr>
            <tr>
              <td width="36%" align="right" valign="top" class="font">วิธีการเรียกใช้งาน:</td>
              <td width="64%" align="left" valign="top"><textarea name="connect" cols="40" rows="3" wrap="virtual" id="connect"></textarea></td>
            </tr>
            <tr>
              <td align="right" valign="top" class="font">หมายเหตุ:</td>
              <td align="left" valign="top"><textarea name="remark" cols="40" rows="3" wrap="virtual" id="remark"></textarea></td>
            </tr>
            
			<?php if($isadmin=='A') {?>
            <tr>
              <td  align="right" valign="top" class="font">สถานะการเผยแพร่ข้อมูล:</td>
			  <td  align="left" valign="top">
			     <input name="secret" type="radio" value="N" />
			     <span class="font">ปกปิด</span> 
			      <input name="secret" type="radio" value="Y" checked="checked" />
			      <span class="font">เผยแผ่</span></td>
            </tr>
			<?php } ?>
            <tr>
              <td colspan="2" align="center" valign="top"><input name="Submit" type="submit" class="Mybutton" value="บันทึก" />
                <input name="Submit2" type="reset" class="Mybutton" value="ยกเลิก" />
				<input type="hidden" name="server_id" value="<?php echo $_GET['server_id'];?>" /></td>
              </tr>
          </table>
</form>
/*ถ้าต้องการใช้มัน รีเฟรชหน้าต้องทำการเขียนให้มันรีเฟรชหน้านะครับ ลองดูครับไม่ได้ยังไงก็ถามกันได้ครับ*/