let current = "login";

function switchPanel(from){
    if(from === current) return;
    if(from === "login"){
        document.getElementsByClassName("login")[0].style.display = "block";
        document.getElementsByClassName("register")[0].style.display = "none";
        current = "login";

        document.getElementsByClassName("button-login")[0].classList.add("active");
        document.getElementsByClassName("button-register")[0].classList.remove("active");
    }
    else{
        document.getElementsByClassName("login")[0].style.display = "none";
        document.getElementsByClassName("register")[0].style.display = "block";
        current = "register";
    
        document.getElementsByClassName("button-login")[0].classList.remove("active");
        document.getElementsByClassName("button-register")[0].classList.add("active");
    }
}