function ShowTab(tabid) {
	// Clear the existing tabs
	var i = 0;
	while (1) {
		i += 1;
		var tab = document.getElementById('tab' + i);
		if (!tab) break;
		tab.setAttribute("class", "");

		var content = document.getElementById('content' + i);
		if (!content) break;
		content.style.display = "none";
	}

	// Select the current one
	document.getElementById('tab' + tabid).setAttribute("class", "selected")
	document.getElementById('content' + tabid).style.display = "block";
}