iPhoneDetector = {
	initialize: function(bannerId){
		if (navigator.platform == "iPhone") {
			this.turnOffBanner(bannerId);
			$$('body').reduce().addClassName('iphone');
		}		
	},
	turnOffBanner: function(bannerId){
		$(bannerId).hide();
	}
}

document.observe("dom:loaded", function(){
	iPhoneDetector.initialize('nav-flash');
});