function ExistsUserName(UserName)
{
	return ($.ajax({ 
		url:BaseUrl + "data/user/validation/username/" + UserName + "/exists",
		async:false
    }).responseText.toLowerCase() == "true");
}
function ExistsEmailAddress(EmailAddress)
{
	return ($.ajax({ 
		url:BaseUrl + "data/user/validation/emailaddress/" + EmailAddress + "/exists",
		async:false
    }).responseText.toLowerCase() == "true");
}