Funçao JS Funciona no FF mas não no Chrome

by Angelo Rogério Rubin

HTML

<form>
    <input type="text"/>
    <input type="submit">
</form>

JavaScript

function validar(formulario){
        var email = loginform.email.value;
        var password = loginform.password.value;
        if((loginform.email.value == '') || (loginform.password.value == '')){
            document.getElementById("alert").style=("display: block");
            return false;
        }
        else
            alert(true);
    }

validar();