var loginErrorMessage = null;

var newOnLoad = function() {
	var elEmail = document.getElementById("email");
	elEmail.onfocus = function() {this.className = "focus";}
	elEmail.onblur = function() {this.className = "";}
	elEmail.focus();
    try {
        var elPass = document.getElementById("password");
        elPass.onfocus = function() {this.className = "focus";}
        elPass.onblur = function() {this.className = "";}
    } catch(e) {}       
}

if(typeof window.onload == "function") {
    prevOnLoad = window.onload;
    window.onload = function() {
        newOnLoad();
        prevOnLoad();
    }
} else {
    window.onload = newOnLoad;
}

var isNotEmpty = function(form) {

    loginErrorMessage = document.getElementById("login-error-message");
    try {
        if(form.email.value=='' || form.email.value.indexOf(' ')!=-1) {
            loginErrorMessage.innerHTML = "El email no puede estar vacío ni contener espacios";
            return false;
        }       
     } catch(e){}

    try {
        if(form.password.value=='' || form.password.value.indexOf(' ')!=-1) {
            loginErrorMessage.innerHTML = "La contraseña no puede estar vacía ni contener espacios";
            return false;
        }       
     } catch(e){}
    
     return true;
}