var emailok='no';
function comprobaremail(){
	document.formnewsletter.email.style.border = "1px solid #2C547C";
	email = document.formnewsletter.email;
	if (email.value!='') {
		var url = 'comprobarmail.php?email=' + email.value;
		
		xmlhttp.open("GET",url,true);
		xmlhttp.onreadystatechange=function() {
		if (xmlhttp.readyState==4) {
			if (xmlhttp.responseText=='yes'){
			email.style.color = "#339900";
			emailok='yes';
			}
			else
			{
			email.style.color = "#cc0000";
			emailok='no';
			}
		}
		}
		xmlhttp.setRequestHeader('Accept','message/x-jl-formresult');
		xmlhttp.send(null);
		return false;
		}
}

function alta(idprovincia){
	if (emailok=='yes'){
		email = document.formnewsletter.email;
		var url = 'guardarnewsletter.php?idprovincia='+idprovincia+'&email=' + email.value;
		xmlhttp.open("GET",url,true);
		xmlhttp.onreadystatechange=function() {
		if (xmlhttp.readyState==4) {
			if (xmlhttp.responseText!='ok')
			alert (xmlhttp.responseText);
			else
			location.href='graciasnewsletter.htm';
		}
		}
		xmlhttp.setRequestHeader('Accept','message/x-jl-formresult');
		xmlhttp.send(null);
		return false;
	}
	else
	{
	alert('El email introducido parece no ser correcto.\nPor favor, escriba de nuevo su email.\nGracias');
	document.formnewsletter.email.style.border = "2px solid red";
	document.formnewsletter.email.value='';
	document.formnewsletter.email.focus();
	return false;
	}
}