[JS] How to make this loop?

[RedPillow]

Code: (javascript)

 $(document).ready(function(){

   var modTime = 0;
setInterval(function(){
  $.post("ChatClient.php", {"file":"chat.cht", "time":modTime}, function(rst) {
    if (rst.time != modTime) {
      modTime = rst.time;
		window.location.reload();
	else {
			
	}
    }
  });
}, 1000);
});

So that is my code, and I need to make it do the whole check again on the else-statemen.
This is supposed to check a file modification time and if it's changed - it should reload the page and if it's not changed, it should just keep checking infinitely again until it is.
It works nice, if I remove the else-statement but then it refreshes every seconds - no matter if the file is modified or not.

I tried this by myself:

Code: (javascript)

 $(document).ready(function(){
loopIt();
function loopIt() {
   var modTime = 0;
setInterval(function(){
  $.post("ChatClient.php", {"file":"chat.cht", "time":modTime}, function(rst) {
    if (rst.time != modTime) {
      modTime = rst.time;
		window.location.reload();
	else {
		loopIt();	
	}
    }
  });
}, 1000);
}
});