Emaill all fileds within an add or edit form to user with email link b

I have created a function within the Events "Add page/Before record added" which will send an email to a User with the content of the fields included in the email.
I would like to include a mechanism within this email to include a LINK back to the edit page of this ticket/form. Much like a standard capability of a problem ticketing system.
Does anyone have any experience with this?
Here is my function within the "Add page/Before record added" events page:
function BeforeAdd(&$values)

{

global $conn;

// Parameters:

// $values - Array object.

// Each field on the Add form represented as 'Field name'-'Field value' pair
//** Send email with new data ****
$message="";

$subject="A new task has been assigned to you...";
//select user email from _users

$str = "select * from _users where LoginName = '".$_SESSION["UserID"]."'";

$rs = db_query($str,$conn);

$data = db_fetch_array($rs);

$useremail = $data["email"];

$email=$useremail;
foreach($values as $field=>$value)

$message.= $field." : ".$value."\r\n";
mail($email, $subject, $message);
return true;
// return true if you like to proceed with adding new record

// return false in other case
}