选择框中的更改会弹出确认框

So i got this select box and onchanging it updates an database with the selected value. What i would like is when i change the value a confirm box pops up. If you press cancel the change wont happen if you press yes you change it is this possible?

Thank you for looking at it.

echo "<select id='select' name='select' onChange='updateDb()'>";
        while ($row = mysql_fetch_array($result)) {
            echo "<option value='" . $row['phonenr'] . "'>" . $row['phonenr'] . "</option>";
        }

        echo "</select>";
function updateDb() {
     $.post("execute.php", $("#form").serialize());
    }

You can do:

if (confirm('Are you sure you want to save this thing into the database?')) {
    // Save it!
    $.post("execute.php", $("#form").serialize());
} else {
    //Nada
}

function updateDb() {

//confirm box
var k = confirm('Are you sure to proceed?');

if(k)
{
    $.post("execute.php", $("#form").serialize());
}else{
    return;
}
}

Expanding on answer from @tymeJV

$(document).ready(function() {
    $('#select').on('change',function(){
        var k = confirm('Are you sure to proceed?');
        if(k) {
            $.post("execute.php", $("#form").serialize());
        }else{
            return false;
        }
    });
});