$(document).ready(shMarks());
function shMarks()
{

	var val = document.getElementById('typem').value;
	$.ajax({
		type:'POST',
		url:'shMarks.php',
		data:{'type':val},
		success: function(data)
		{
			$('#mark').html(data);
			getSum();
		}
});
}
$conection = mysqli_connect("127.0.0.1", "root", "", "ex");
$select = $conection->query("SELECT * FROM auto WHERE mark IN ('$val1')");
while($row = $select->fetch_assoc())
	$answer = $row['rate'] * $val2;