ช่วยดู Code ให้หน่อยครับ อยากทราบว่าจะเขียน insert ข้อมูลอยู่ใน switch case ได้ไหมครับ

<form name="BannerFrm" id="BannerFrm" method="post" action="enquiry_process.php" onsubmit="return bannerFrm()" >
<div class="large-10 columns">
<div class="topform"><input type="text" name="nameB" id="nameB" placeholder="ชื่อ-นามสกุล..." /></div>
<div class="form-arrow"><center><img alt="" src="images/icon-arrow.png" /></center></div>
<div class="topform"><input type="text" name="companyB" id="companyB" placeholder="บริษัท..." /></div>
<div class="form-arrow"><center><img alt="" src="images/icon-arrow.png" /></center></div>
<div class="topform"><input type="text" name="phoneB" id="phoneB" placeholder="มือถือ..." /></div>
<div class="form-arrow"><center><img alt="" src="images/icon-arrow.png" /></center></div>
<div class="topform"><input type="text" name="emailB" id="emailB" placeholder="อีเมล ..." /></div>
<div class="form-arrow"><center><img alt="" src="images/icon-arrow.png" /></center></div>
<div class="topform"><select name="servicesB" id="servicesB" style="background:url(images/select-arrow.png) no-repeat #ffffff; background-position:right">
<option value="">เลือกบริการ</option>
<?php 
  $services = $GLOBALS['db_con_obj']->fetch_flds("services","Id,Title,UniqueKey,Thumb,ShortDesc","Status=1 order by display_order asc");
   while($ser_data = mysql_fetch_object($services[0])) {?>
   <option value="<?php echo $ser_data->Title ?>"><?php echo $ser_data->Title ?></option>
  <?php }?>
</select></div>
<div class="form-arrow"><center><img alt="" src="images/icon-arrow.png" /></center></div>
<input type="hidden"  name="action" value="banner_frm"  />
</div>
<div class="large-1 columns"><button id="BannerForm">Submit</button></div>
</form>

switch($action){
	
	case "banner_frm":
		$objConnect = mysql_connect("localhost","","") or die("Error Connect to Database");
		$objDB = mysql_select_db("webnatics");
		$strSQL = "INSERT INTO membertest";
		$strSQL .="(name,phone,email,company,interest)";
		$strSQL .="VALUES";
		$strSQL .="('".$_POST["nameB"]."','".$_POST["phoneB"]."','".$_POST["emailB"]."','".$_POST["companyB"]."','".$_POST["servicesB"]."')";
		$objQuery = mysql_query($strSQL);
		if($objQuery)
			{
		echo "Save Done.";
			}
		else
			{
		echo "Error Save [".$strSQL."]";
			}
		mysql_close($objConnect);
$name = $_REQUEST['nameB'];
		$phone = $_REQUEST['phoneB'];
		$email = $_REQUEST['emailB'];
		$company = $_REQUEST['companyB'];
		$interest = $_REQUEST['servicesB'];
		
		//$to_email = $GLOBALS['site_config']['enquiries_email']; 
		$html_message ="<table width='750px' cellpadding='2' cellspacing='2' ><tr><td colspan='2'>Dear Admin,</td></tr>";			
			$html_message .= "<tr><td colspan='2'>You have received new enquiry. Enquiry details are below:</td></tr>
							<tr><td>Name : </td><td height='20px'>" .$name . "</td></tr>
							<tr><td>Email : </td><td height='20px'>" . $email . "</td></tr>
							<tr><td>Mobile : </td><td height='20px'>" . $phone . "</td></tr>
							<tr><td>Company : </td><td height='20px'>" . $company . "</td></tr>
							<tr><td>Interest : </td><td height='20px'>" . $interest . "</td></tr>";			
			
			$html_message .= "<tr><td colspan='2'><p>Thank you<br /></p></td></tr></table>";
			
			
			$message = $html_message;
			$subject = $name." has sent enquiry email.";
			
			 $to = $GLOBALS['site_config']['enquiries_email'];