function gotoPage(page) {
	var target = kHomePage + "?page=" + page;
	window.location.href = target;
}
var visiblePage = null;
function showPage(pageToOpen) {
	var button = document.getElementById(pageToOpen + "Button");
	if (visiblePage) {
		visiblePage.style.display = "none";
		selectedButton.className = "";
	}
	selectedButton = button;
	selectedButton.className = "selected";
	visiblePage = document.getElementById(pageToOpen);
	visiblePage.style.display = "block";
	document.getElementById('subTitle').innerHTML = selectedButton.innerHTML;
}