//javascript file
function checkUsername() {

	return true;
}
function check4ssn(obj){
	if (obj.value.length >=3){
	var givenTextFirstThree = obj.value.substring(0,3);
	numberTest=parseFloat(givenTextFirstThree);
		if (!isNaN(givenTextFirstThree)) {
		   // this means that the first 3 chars are numbers
		   displayLoginText(obj);
		}
		
	}
}

function displayLoginText(obj){
	var message ="It looks like you are not putting in a UVa User ID.\n       (User ID example: mst3k)\n\nWould you like to start over?";
		var answer = confirm(message)
		if (answer){
			obj.value = "";
		}
		else{
			//do nothing and let them figure it out.
		}
}

function toggle(targetId,thisObj) {
	if (document.getElementById) {
		target = document.getElementById(targetId);
		if (target.style.display == "none") {
			target.style.display = "";
			thisObj.innerHTML = "[close details]";
			}
		else {
			target.style.display = "none";
			thisObj.innerHTML = "[show details]";
			}
		}
	}
function checkForm(form) {
	// create our regex expression to test the email	
	var emailFilter = /^.+@.+\..{2,3}$/;
	// check if name was provided
	if (!(form.name.value)) {
		alert('NAME: please provide your name');
		form.name.focus();
		return false;
	}
	else if (!(emailFilter.test(form.email.value))) { 
		alert('EMAIL: please provide a valid email address');
		form.email.focus();
		return false;
	}
	// else
	return true;
}