var man = null;
var lady = null;
var manIncrement = -1;
var ladyIncrement = +1;

function doMove() {
	man.style.top = parseInt(man.style.top)+manIncrement+'px';
	lady.style.top = parseInt(lady.style.top)+ladyIncrement+'px';
	if (man.style.top === '290px'){manIncrement = +1;}
	if (man.style.top === '310px'){manIncrement = -1;}
	if (lady.style.top === '19px'){ladyIncrement = +1;}
	if (lady.style.top === '41px'){ladyIncrement = -1;}
	setTimeout(doMove,125);
}

function init() {
	man = document.getElementById('man');
	lady = document.getElementById('lady');
	if(man && lady){
		man.style.top = '300px';
		lady.style.top = '26px';
		doMove();
	}
}

function detectBrowser() {
	var browser = navigator.appName
	//if (browser != "Microsoft Internet Explorer"){init();}
	init();
}

window.onload = detectBrowser;