I create new variable and next code is add value to this variable. This code have Load (working) and dont working save i try to fix search google and i dont know
<?php
session_start();
?>
<script type="text/javascript">
var drzewo = 0;
var ustdrzewo = 1;
/* L O A D */
function wczytaj() {
drzewo = <?php echo $_SESSION['drewno']; ?>;
ustdrzewo = <?php echo $_SESSION['ustdrzewo']; ?>;
document.getElementById("drzewo").innerHTML = drzewo;
document.getElementById("ustdrzewo").innerHTML = ustdrzewo;
}
/* S A V E */
function zapisz() {
<?php
$_SESSION['drewno'] = "<script type='text/javascript'> document.getElementById('drzewo').innerHTML = drzewo; </script>"
?>
window.location.href = "zapis.php"
}
function addwood() {
drzewo +=ustdrzewo
document.getElementById("drzewo").innerHTML = drzewo;
}
<script type="text/javascript">
//include jquery
$.post( "other.php", { drewno: drzewo } );
</script>
other.php
<?php
$_SESSION['drewno'] = $_POST["drewno"];
?>