Question

I want to dynamically tell a javascript which <div> to hide, but I dont know how to send the request to the javascript as it is a client side script.

for eg:

<?
$divtohide = "adiv";
?>
<script language="javascript">
            function hidediv($divtohide) {
            ................
            }
</script>

Answer 1

Assuming $divtohide actually contains the ID of a <div> element and not a JavaScript variable name, write your JavaScript function as normal:

function hidediv(divtohide) {
    // Your code may differ here, mine's just for example
    document.getElementById(divtohide).style.display = 'none';
}

And print out the PHP variable only when you’re calling it, within a pair of quotes:

hidediv("<?php echo addslashes($divtohide); ?>");

addslashes() ensures that quotes " in the variable are escaped so your JavaScript doesn’t break.