function AlumniType_OnChange()
{
	var classOfContainer = document.getElementById('divClassOf');
	classOfContainer.style.display = (this.value == "1") ? "block" : "none";
}

window.onload = function()
{
	var alumniType = document.getElementById('fbAlumniType');
	alumniType.onchange = AlumniType_OnChange;
	alumniType.onchange();
};