fuck-you | ⚠⚠ ( ╯°□°）╯︵sǝssǝɔoɹd oʎ llɐ llıʞǝɓɐɹ | Build Tool library

function openPage(pageName,elmnt,color) {
    var i, tabcontent, tablinks;
    tabcontent = document.getElementsByClassName("tabcontent");
    for (i = 0; i < tabcontent.length; i++) {
        tabcontent[i].style.display = "none";
    }
    tablinks = document.getElementsByClassName("tablink");
    for (i = 0; i < tablinks.length; i++) {
        tablinks[i].style.backgroundColor = "";
    }
     document.getElementById(pageName).style.display = "block";
     pageName.scrollTop = 0; // <== Try this
     elmnt.style.backgroundColor = color;
   }