function switchTab(caller) {
	if (caller.className != "on") {
		var elements = document.getElementById('services').getElementsByTagName('div');
		for (x = 0; x < elements.length; x++) {
			if (elements[x].className == 'on')
				elements[x].className = "";
		}
		caller.className = "on";
		switch(caller.id) {
			case "obsHeader":
			  document.getElementById('alerts').style.display = "none";
			  document.getElementById('overdraftProtection').style.display = "none";
			  document.getElementById('onlineBankingServices').style.display = "block";
			break
			case "alertsHeader":
			  document.getElementById('alerts').style.display = "block";
			  document.getElementById('overdraftProtection').style.display = "none";
			  document.getElementById('onlineBankingServices').style.display = "none";
			break
			case "opHeader":
			  document.getElementById('alerts').style.display = "none";
			  document.getElementById('overdraftProtection').style.display = "block";
			  document.getElementById('onlineBankingServices').style.display = "none";
			break
		}
	}
	else {
		caller.className = "";
		switch(caller.id) {
			case "obsHeader":
			  document.getElementById('onlineBankingServices').style.display = "none";
			break
			case "alertsHeader":
			  document.getElementById('alerts').style.display = "none";
			break
			case "opHeader":
			  document.getElementById('overdraftProtection').style.display = "none";
			break
		}
	}
}