How can I pass a parameter to a setTimeout() callback?

Question

I have some JavaScript code that looks like:

function statechangedPostQuestion()
{
  //alert("statechangedPostQuestion");
  if (xmlhttp.readyState==         


        

Answer 1

Answering the question but by a simple addition function with 2 arguments.

var x = 3, y = 4;

setTimeout(function(arg1, arg2) { 
      delayedSum(arg1, arg2);
}(x, y), 1000);

function delayedSum(param1, param2) {
     alert(param1 + param2); // 7
}