isLoggedIn())
{
	header ("location: ../login.php");
	exit ();
}
//variables needed globably in this file.
$tablename="$cfg_tableprefix".'customers';
$field_names=null;
$field_data=null;
$id=-1;
	//checks to see if action is delete and an ID is specified. (only delete uses $_GET.)
	if(isset($_GET['action']) and isset($_GET['id']))
	{
		$action=$_GET['action'];
		$id=$_GET['id'];
		
	}
	//checks to make sure data is comming from form ($action is either delete or update)
	elseif(isset($_POST['first_name']) and isset($_POST['last_name']) and isset($_POST['account_number']) 
	and isset($_POST['phone_number']) and isset($_POST['email']) and isset($_POST['street_address']) and isset($_POST['comments']) and isset($_POST['id']) and isset($_POST['action']) )
	{
		
		$action=$_POST['action'];
		$id = $_POST['id'];
		
		//gets variables entered by user.
		$first_name = $_POST['first_name'];
		$last_name = $_POST['last_name'];
		$account_number = $_POST['account_number'];
		$phone_number = $_POST['phone_number'];
		$email = $_POST['email'];
		$street_address = $_POST['street_address'];
		$comments = $_POST['comments'];
		
		
		//insure all fields are filled in.
		if($first_name=='' or $last_name=='' or $phone_number=='')
		{
			echo "$lang->forgottenFields";
			exit();
		}
		else
		{
			$field_names=array('first_name','last_name','account_number','phone_number','email','street_address','comments');
			$field_data=array("$first_name","$last_name","$account_number","$phone_number","$email","$street_address","$comments");	
	
		}
		
	}
	else
	{
		//outputs error message because user did not use form to fill out data.
		echo "$lang->mustUseForm";
		exit();
	}
	
switch ($action)
{
	//finds out what action needs to be taken and preforms it by calling methods from dbf class.
	case $action=="insert":
		$dbf->insert($field_names,$field_data,$tablename,true);
	break;
		
	case $action=="update":
		$dbf->update($field_names,$field_data,$tablename,$id,true);
				
	break;
	
	case $action=="delete":
		$dbf->deleteRow($tablename,$id);
	
	break;
	
	default:
		echo "$lang->noActionSpecified";
	break;
}
$dbf->closeDBlink();
?>
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