function session_startup_animation()
{
    let body = document.querySelector("body");
    body.style.opacity = 0;

    let quotes = null;
    let xmlhttp = new XMLHttpRequest();

    xmlhttp.open("GET", "files/startup_quotes.json", false);
    xmlhttp.send();

    if (xmlhttp.status==200) {
        quotes = JSON.parse(xmlhttp.responseText)["quotes"];
    }

    console.log(quotes.length);
}

function interrupt_starting_animation()
{
    
}

window.onkeydown = () => {
    interrupt_starting_animation();
    window.onkeydown = null;
}

window.onload = () => {
    if(!sessionStorage.getItem("hasExecutedSessionStartupAnimation"))
    {
        sessionStorage.setItem("hasExecutedSessionStartupAnimation", "true");
        session_startup_animation();
    }
}