//saco blancos al principio y al final
function trim(cadena)
   {cadena = cadena.replace(/^\s+/, '');
    cadena = cadena.replace(/\s+$/, '');
	return cadena;}

//valido si la cadena es un email
function validarEmail(valor) { 
  valor = trim(valor);
  if(valor == '') return true;
  if (/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(valor)){
    return true
  } else {
    return false;
  }
}
	
//chequeo el formulario
function evaluar_form(){
    valor=trim(document.forms.contacto.nombre.value);     
	if (valor==""){
		alert("Please fill out name");
		return false;
	}	

	if (trim(document.forms.contacto.email.value) == ""){
		alert("Please fill out e-mail");
		return false;
	}			
	
    if(!(validarEmail(document.forms.contacto.email.value))){
		alert("E-mail is incorrect");
		return false;	   
	}	
return true;	
}

var err = window.location + "";
var arrErr = err.split("=");
if(arrErr[1]){
	if(arrErr[1] == 1){
		alert("The message was delivered successfully");
	}else{
		alert("Your message could not be sent. Please try again.");
	}
}