$(document).click() not working correctly on iPhone. jquery

This function works perfectly on IE, Firefox and Chrome but when on the iPhone, it will only work when clicking on a <img>. Clicking on the page (anywhere but on a img) wont fire the event.

$(document).ready(function () {
  $(document).click(function (e) {
    fire(e);
  });
});

function fire(e) { alert('hi'); }

The HTML part is extremely basic and shouldnt be a problem.

Any ideas?