Doubt in javascript code

Hello friends how to pass a javascript variable to ajax and from ajax how we can pass it to the php page please give me an answer

Are you talking about a jQuery AJAX request or a regular Javascript HTTPRequest?

jquery ajax using the commands like

$.post(“execut.php”, {nick:nick}, function(data){
like this…

hello reply if any one knows pls …i am not getting how to pass an javascript variable value in this please any one…

$.post(“execut.php”, {nick:nick}, function(data){

Instead of function(data){…} you can return it instead from a separate function, so that it then has access to other passed variables.

function (someVar) {
    // passedVar is now available as someVar
    return function (data) {
        // someVar is accessible from in here