function id_helper(target_id) {
	return document.getElementById(target_id);
}

function addDeptToField(dept) {	
	var current = document.getElementById('majors').value;
	
	if (current.replace(/^\s+|\s+$/g, '') == "")
		current += dept;
	else {
		if (dept != "")
			current = current + ", " + dept;
	}
	
	document.getElementById('majors').value = current;
}

function clearField(field) {
	document.getElementById(field).value = "";
}