// JavaScript Document

  function validate() {
  
    if (! isValidEmail(document.getElementById("email").value)) {
        alert("Email errado");
		document.getElementById("email").focus();

        return false;
    }
    calcula();
    return true;

  }

  
  function verificaEmail(){
  		//origem é o id do campo
		var email = document.getElementById('email').value;
		
		if( !checkMail(email) ){
			document.getElementById("MsgEmail").innerHTML = "Este email não é valido";
			document.getElementById("email").value = "";

		}else{
	
			if(ajax){
				
				
				ajax.open("GET", "validarEmailAjax.php?dados="+email, true);
				ajax.onreadystatechange = function(){
					if(ajax.readyState == 4){
						var mensagem = " "+ajax.responseText;
						
						if(mensagem.indexOf("Email") == 1){
							document.getElementById("email").value = "";
							document.getElementById("email").focus();
						}
						document.getElementById("MsgEmail").innerHTML = ajax.responseText;
						if(ajax.responseText != 2){
							return false;
						}else{
							return true;
						}
					}
				}
				ajax.send(null);
			}
		}
  }
  function verificarLogin(){
  		//origem é o id do campo
		var login = document.getElementById('login').value;
		if(login.length > 3){
			if(ajax){
				ajax.open("GET", "validarLoginAjax.php?dados="+login, false);
				ajax.onreadystatechange = function(){
					if(ajax.readyState == 4){
						document.getElementById("MsgLogin").innerHTML = ajax.responseText;
						if(ajax.responseText.length != 2){
							document.getElementById("login").value = "";
							return false;
						}else{
							return true;
						}
					}
				}
				ajax.send(null);
			}
		}else {
			document.getElementById("login").value = "";
			document.getElementById("MsgLogin").innerHTML = "O Login deve conter mais de 4 caracteres";	
		}
	}