function checkEmailAd()
{
	var error = '';
	document.forms.emailad.mail.style.border		= "1px solid #D8D8D8";
	if (document.forms.emailad.mail.value.indexOf("@") == -1 || document.forms.emailad.mail.value.indexOf(".") == -1) 
	{
		error = error+"- please provide a valid email address<br>";
		document.forms.emailad.mail.style.border = "1px dotted red";
	}

	if (error != '')
	{
		document.getElementById('divError').style.display = '';
		document.getElementById('divErrorMessage').innerHTML = error;
		document.getElementById('divErrorPhp').style.display = 'none';
		return false;
	}
	else
	{
		document.getElementById('divError').style.display = 'none';
		return true;
	}
	return false;
}