function init_home(){
	var gImages = new Array();
	gImages["masthead-win"] = "/static/getting-started/2.0b2/en-US/images/beta-win.jpg";
	gImages["masthead-mac"] = "/static/getting-started/2.0b2/en-US/images/beta-mac.jpg";

	var appVer = navigator.appVersion.toLowerCase();
	var masthead = document.getElementById("masthead");
	if (appVer.indexOf('mac') == -1) {
		//masthead.className = "feature-image-win";
		masthead.style.backgroundImage = 'url("' + gImages["masthead-win"] + '")';
	} 
	else {
		//featureMain.className = "feature-image-mac";
		masthead.style.backgroundImage = 'url("' + gImages["masthead-mac"] + '")';
	}
}

window.onload = init_home;