Question

I have a small problem which I can’t seem to find a solution to. The problem is that the following code works in FF but doesn’t in Safari. Probably it is a rookie mistake, but I have been struggling now for two days and it is really getting on my nerves.

<script type="text/javascript">
 var settings = functionToReadSettings();
 document.observe('dom:loaded', function () {   
  functionToInit(settings);             
 });
</script>

The error I get in Safari is in functionToInit. It says that settings in undefined. I tried changing the places – both the settings definition and the call to functionToInit to be in the dom:loaded and both to be outside of it, but then it doesn’t work in FF also.

Any help will be greatly appreciated.

Edit: Here is the functionToReadSettings :

functionToReadSettings: function () {
 new Ajax.Request('readSettings.php', {
  method:'get',
  onSuccess: function(transport){
   settings = transport.responseText.evalJSON(true);
  }
 });
 return settings;
}

Answer 1

Well, syncrhonisation isn’t trivial task in js.
I don’t know, whether such features are implemented in prototype, but there’s another interesting library for such things:
http://onilabs.com/presentations/OSCON2010/par-fork-join.html