[RESOLVED] A working idea

[cluelessPHP]

I have a working idea but I'm not sure it's practical real world,

<script type="text/javascript">

function managefirstSelect(value)
{
    var firstSelect = document.myform.firstSelect
    var secondSelect = document.myform.secondSelect
    var thirdSelect = document.myform.thirdSelect
    var fourthSelect = document.myform.fourthSelect
    var fifthSelect = document.myform.fourthSelect
    secondSelect.options.length = 0
    thirdSelect.options.length = 0

if(value == "Pink Floyd")
{
    secondSelect.options[secondSelect.options.length] = new Option('Please select a venu :')
	<?php 

		$art = $_GET['artists'];
		$arts = $db->prepare("SELECT id, artist, date FROM events Where artist = :artists");
		$arts->bindValue(':artists', $art);

		foreach($arts as $artists):		
	?>
    secondSelect.options[secondSelect.options.length] = new Option('London')
	<?php endforeach; ?>
}
}
</script>

So the basic idea would be to use JavaScript to dynamically create options, would it have real world applications? (yes it's not 100% finished yet)

[NogDog]

Rather than trying to download every possible permutation of form select elements into the HTML output, I might be more inclined to make AJAX-based calls to a PHP (or whatever) API that would return JSON (or whatever), which your JS would then use to update the HTML form as applicable based on the values of interest.

[cluelessPHP]

Ah I'm with you