iPhone Mobile Safari window height without address bar or button bar

iPhoneWindowHeight.js

var isiPhone = (navigator.userAgent.match(/iPhone/i)) || (navigator.userAgent.match(/iPod/i));

var getWindowHeight = function(){
  return isiPhone ? window.screen.availHeight - (window.navigator.standalone ? 0 : 44) : $(window).height();
}


//Lose the address bar

$(window).load(function(){

// http://stackoverflow.com/questions/2526315/strange-jquery-window-load-behavior-in-safari
// Checking for an offset forces safari for finish loading/layout out the content, it blocks javascript until the return completes. You can use it like this:

var block = document.body.offsetWidth;

  // Set a timeout...
  if(isiPhone){
    setTimeout(function(){
    window.scrollTo(0, 1);
    }, 0);
  }
  
});