function UserUtils()
{
}

/**
 * Checks to see if teh user with the given email address already exists
 * @param email_address the email address of the user
 * @return true if the user exists, false otherwise
 */
UserUtils.userExists = function(email_address)
{
	var ret = AjaxUtils.makeSynchronousGetRequest("checkUser.php?email_address=" + email_address);
	return eval(ret);
};