var xmlHttp
//FUNCION QUE PROCESA LA INFORMACION INTRODUCIDA EN LOS CUADROS DE TEXTO
function procesar(){
if(document.getElementById("RFC1").value.length == 4 && document.getElementById("RFC2").value.length == 6 && document.getElementById("RFC3").value.length == 3 || document.getElementById("RFC3").value.length == 2){
	showCustomer(document.getElementById("RFC1").value+document.getElementById("RFC2").value+document.getElementById("RFC3").value);
	}
}
//-->
function showCustomer(str)
{ 
	//alert(str);
	xmlHttp=GetXmlHttpObject();
	if (xmlHttp==null)
	  {
		  alert ("Your browser does not support AJAX!");
		  return;
	  } 
	var url="includes/getRFC.asp";
	url=url+"?validUser="+str;
	url=url+"&sid="+Math.random();
	xmlHttp.onreadystatechange=stateChanged;
	xmlHttp.open("GET",url,true);
	xmlHttp.send(null);
}
//-->
function stateChanged(){ 
	if (xmlHttp.readyState==4){ 
	document.getElementById("txtHint").innerHTML=xmlHttp.responseText;
	var posValue = xmlHttp.responseText.indexOf("value=");
	var currStatus = (xmlHttp.responseText.substr(posValue+7,1));
	//alert(currStatus);
		if(currStatus == "N"){
			document.getElementById("btnRegistrar").disabled = true;
			document.getElementById("RazonSocial").disabled = true;
			document.getElementById("Nombre").disabled = true;
			document.getElementById("ApellidoPaterno").disabled = true;
			document.getElementById("ApellidoMaterno").disabled = true;
			document.getElementById("Email").disabled = true;		
			document.getElementById("Telefono1").disabled = true;
			document.getElementById("Telefono2").disabled = true;	
			//document.getElementById("sucursal").disabled = true;	
			document.getElementById("Estado").disabled = true;
		}else{
			document.getElementById("btnRegistrar").disabled = false;
			document.getElementById("razonSocial").disabled = false;
			document.getElementById("Nombre").disabled = false;
			document.getElementById("ApellidoPaterno").disabled = false;
			document.getElementById("ApellidoMaterno").disabled = false;
			document.getElementById("Email").disabled = false;		
			document.getElementById("Telefono1").disabled = false;
			document.getElementById("Telefono2").disabled = false;
			//document.getElementById("sucursal").disabled = false;									
			document.getElementById("Estado").disabled = false;
		}
	}
}
	
function GetXmlHttpObject(){
var xmlHttp=null;
try
  {
  // Firefox, Opera 8.0+, Safari
  xmlHttp=new XMLHttpRequest();
  }
catch (e)
  {
  // Internet Explorer
  try
    {
    xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
    }
  catch (e)
    {
    xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
    }
  }
return xmlHttp;
}