Pass php variable to java function

[MeTa]

Salut baieti,
Am o mare problema daca ma poate ajuta cineva

Vreau ca in functia de JS sa duc variabila de php si nu am nici cea mai vaga idee cum

PHP

<?
$codid=$_GET["cid"];

echo "
<script>
setTimeout(function() {CSelect();}, 100) ;
</script>
<div id=\"ReloadThis\"></div>";
?>

JS FUNCTION

function CSelect()
			{
				var
					$http,
					$self = arguments.callee;


				if (window.XMLHttpRequest) {
					$http = new XMLHttpRequest();
				} else if (window.ActiveXObject) {
					try {
						$http = new ActiveXObject('Msxml2.XMLHTTP');
					} catch(e) {
						$http = new ActiveXObject('Microsoft.XMLHTTP');
					}
				}

				if ($http) {
					$http.onreadystatechange = function()
					{
						if (/4|^complete$/.test($http.readyState)) {
							document.getElementById('ReloadThis').innerHTML = $http.responseText;
							setTimeout(function(){$self();}, 10);
						}
					};
					$http.open('GET', 'linii_c/select.php'+'?cod='+'PHP VARIABLE', true);
					$http.send(null);
				}

			}

Cum pot adauga variabila php in aceasta functie?

Multumesc!

[Daniel]

$http.open('GET', 'linii_c/select.php'+'?cod='+'<?=$variabila_aici;?>', true);

ps1: Java !=JavaScript - cam de la cer la pamant
ps2: recomand un framework JavaScript - de ex. jQuery. il poti include direct din Google CDN, deci sunt sanse mari ca sa existe deja in cacheul browserului, deci nu se va incarca pagina mai greu, iar avantajele nu se opresc aici