ReiniG

So you mean that it will not work the way I set it up?

But the seat selection by the user will always be at the client side!

I chose to use a simple text file, because there is little data and I think it is faster than accessing a database.

I'm trying to develop a simple theatre seat reservation system. I'm using a text file "seats.txt", where I store seat number and status (f, r, s) and read the file line by line.

If the user clicks on an image the javascript function is triggered and the image will change:

<?php 
$counter = 0;
$file = 'seats.txt';
$line = file($file);
for($i=0;$i < 14;$i++){ 
	$counter = $counter + 1; 
	$string = $line[$i]; 
	if($counter == 8) { echo "&nbsp &nbsp <img src='R1.bmp' /> &nbsp &nbsp &nbsp &nbsp"; } 
	if(substr($string,4,1) == "f") { 
		echo "<img id=$i onclick='myFunction(id)' src='chkBox_10.bmp' title='0' /> &nbsp &nbsp"; } 
	else if(substr($string,4,1) == "s") { 
		echo "<img id=$i onclick='myFunction(id)' src='chkBox_2.bmp' title='2' /> &nbsp &nbsp"; } 
	else if(substr($string,4,1) == "r") { 
		echo "<img id=$i onclick='myFunction(id)' src='chkBox_1.bmp' title='1' /> &nbsp &nbsp"; } 
	else {
    echo "<img id=$i onclick='myFunction(id)' src='chkBox_3.bmp' title='3' /> &nbsp &nbsp"; }
}
?>
<script>
function myFunction(imgID) {
  var img = document.getElementById(imgID).title;
  if (img == "1") {
  window.alert("Reserved seat!");
	} else if (img == "2") {
  window.alert("Sold seat!");
	} else if (img == "3") {
  window.alert("Handicap seat!");
	} else if (img == "4") {
  document.getElementById(imgID).src = "chkBox_10.bmp";	
  document.getElementById(imgID).title = "0";
  } else {
  document.getElementById(imgID).src = "chkBox_4.bmp";	
  document.getElementById(imgID).title = "4";
  }
}
</script>

My question is now: How can I get the selected seats (from the client side javascript) into a shopping cart (eventually on another page)?