Normalized hide address bar for iOS & Android

hideaddrbar.js

//scroll to top, hide address bar on mobile devices - 1 for android, 0 for the rest
(function( win ){
	var doc = win.document;
	
	// If there's a hash, or addEventListener is undefined, stop here
	if( !location.hash || !win.addEventListener ){
		
		//scroll to 1
		window.scrollTo( 0, 1 );
		var scrollTop = 1,
			getScrollTop = function(){
				return "scrollTop" in doc.body ? doc.body.scrollTop : 1;
			},
		
			//reset to 0 on bodyready, if needed
			bodycheck = setInterval(function(){
				if( doc.body ){
					clearInterval( bodycheck );
					scrollTop = getScrollTop();
					win.scrollTo( 0, scrollTop === 1 ? 0 : 1 );
				}	
			}, 15 );
		
		win.addEventListener( "load", function(){
			setTimeout(function(){
				//at load, if user hasn't scrolled more than 20 or so...
				if( getScrollTop() < 20 ){
					//reset to hide addr bar at onload
					win.scrollTo( 0, scrollTop === 1 ? 0 : 1 );
				}
			}, 0);
		}, false );
	}
})( this );