yep your right. this can be done with sessions. do you no how to use sessions in php?
also just a quick tip. if you wanna send an array of values from a form, give the elements the same name suffixed with []
Code:
Heltal: <input type="text" name="tal[]" />
Heltal: <input type="text" name="tal[]" />
and then in your php
PHP Code:
foreach($_POST['tal'] as $val){
//do something with each $val here
}