function isEmail(string) {
	if (string.search(/^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/) !== -1){
		return true;
	}
	else {
		return false;
	}
}

function isBlank(obj){
	if (document.getElementById(obj).value == ''){
		return true;
	}
	
	else {
		return false;
	}
}

function passwordMatch(pw1, pw2){
	if (document.getElementById(pw1).value == document.getElementById(pw2).value){
		return true;
	}
	
	else {
		return false;
	}
}


function hideElement(objectID){
	// hide object on page
	document.getElementById(objectID).style.display = 'none';
}

function showElement(objectID){
	// show object on page
	document.getElementById(objectID).style.display = 'block';
}

function setStatus(obj, status){
	showElement(obj);
	document.getElementById(obj).innerHTML = status;
}