[JS] How to make this loop?

[RedPillow]

Code: Javascript [Select]

1. $(document).ready(function(){
2.  
3.    var modTime = 0;
4. setInterval(function(){
5.   $.post("ChatClient.php", {"file":"chat.cht", "time":modTime}, function(rst) {
6.     if (rst.time != modTime) {
7.       modTime = rst.time;
8.                 window.location.reload();
9.         else {
10.                        
11.         }
12.     }
13.   });
14. }, 1000);
15. });

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 [Select]

1. $(document).ready(function(){
2. loopIt();
3. function loopIt() {
4.    var modTime = 0;
5. setInterval(function(){
6.   $.post("ChatClient.php", {"file":"chat.cht", "time":modTime}, function(rst) {
7.     if (rst.time != modTime) {
8.       modTime = rst.time;
9.                 window.location.reload();
10.         else {
11.                 loopIt();      
12.         }
13.     }
14.   });
15. }, 1000);
16. }
17. });