#About

If you've ever tried to use position:fixed on Mobile Safari prior to version 5, then this plugin is for you.

This will give you a JavaScript variable (hasPositionFixed = true | false) that will let you make good decisions about whether or not you can use position:fixed or need to simulate it with some JavaScript.

I'm still hoping to turn this into a Modernizr extension, but I have yet to be able to get that to work, as I don't think the iframe solution will work in that context.

#How To

Simply add this before the closing body tag.

<script src="//ajax.googleapis.com/ajax/libs/jquery/1/jquery.js"></script>
<script src="hasPositionFixed/js/jquery.hasFixed.js"></script>
<script>
  $.hasPositionFixed();
</script>

This will create the 'hasPositionFixed' variable that you can then use later in your code. The gotcha here is that this code is asynchronous, so if you have a test following $.hasPositionFixed() it probably won't work as expected because the test may not be done.

The solution to this is to pass in any coide that needs to perform the test as a callback.

<script src="//ajax.googleapis.com/ajax/libs/jquery/1/jquery.js"></script>
<script src="js/jquery.ba-throttle-debounce.min.js"></script>
<script src="js/jquery.fix.js"></script>
<script src="hasPositionFixed/js/jquery.hasFixed.js"></script>
<script>
  $.hasPositionFixed(function() {
    $('nav').fix();
  });
</script>

Now, after support has been determiend, it calls the jquery.fix plugin to take care of the fixed navbar. You'll noticve that I added in a reference to Ben Alman's throttle-debounce plugin since jquery.fix.js needs to add an event handler to the scroll event.

#Todos