function EnuevoAjax(){
	var xmlhttp=false;
	try{
		xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
	}catch(e){
		try {
			xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
		}catch(E){
			xmlhttp = false;
		}
	}

	if (!xmlhttp && typeof XMLHttpRequest!='undefined') {
		xmlhttp = new XMLHttpRequest();
	}
	
	return xmlhttp;
}

function  EnuevoEvento(valor){
//	var input=document.getElementById("nick");
//	var valor=input.value;
	resul = document.getElementById('_error');

	
	ajax=EnuevoAjax();
	ajax.open("POST", "php/disponibilida.php",true);
	ajax.onreadystatechange=function() {
		if (ajax.readyState==1) { resul.innerHTML = "<img width='16' height='16' src='Imagens/loading.gif'><font face=Arial color='#0099cc'>Cargando...</font>"; }
		else if ((ajax.readyState == 4) && (ajax.status == 200)) {
			resul.innerHTML = ajax.responseText
		}
	}
	ajax.setRequestHeader("Content-Type","application/x-www-form-urlencoded");
	ajax.send("verificacion="+valor)

}
function  _comprobar(){
	var input=document.getElementById("email");
	var valor=input.value;
	resul = document.getElementById('_error');

	
	ajax=EnuevoAjax();
	ajax.open("POST", "php/disponibilida.php",true);
	ajax.onreadystatechange=function() {
		if (ajax.readyState==1) { resul.innerHTML = "<font face=Arial color='#999999'>Cargando...</font>"; }
		else if ((ajax.readyState == 4) && (ajax.status == 200)) {
			resul.innerHTML = ajax.responseText
		}
	}
	ajax.setRequestHeader("Content-Type","application/x-www-form-urlencoded");
	ajax.send("verificacion="+valor)

}
///////////  http://<strong>"+CuentaUSR+"</strong>."+Folpi+"<br>   ///////////
function $rctt(aaaa){
	return document.getElementById(aaaa);
}
var ECaracteres = "abcdefghijklmnopqrstuvwxyz1234567890@-_.";

function _EmailUsuario(){
		var _HTTP = $rctt("email").value.toLowerCase();
		var CuentaUSR = '';
		for(i=0;i<_HTTP.length;i++){
			if(ECaracteres.indexOf(_HTTP.substr(i,1)) != -1){
				CuentaUSR += _HTTP.substr(i,1); 
			}
		}
		EnuevoEvento(CuentaUSR);
		return CuentaUSR;
	}