Hide Unlocked Achievements Steam

//https://steamcommunity.com/id/{users}/stats/{game}/?tab=achievements

var listtoRemove = [];
var input = "Halo 3:";
for (i = 0; i < document.getElementsByClassName("achieveRow").length; i++) {
    var current = document.getElementsByClassName("achieveRow")[i];
    if(current.attributes[0].value == '{"autoFocus":true,"focusable":true,"clickOnActivate":true}')
    listtoRemove.push(current);
    else if(current.children[1].children[0].children[1].outerText.search("Halo 3:") < 0)
    listtoRemove.push(current);
}
for (z = 0; z < listtoRemove.length; z++) {
    //Achievement Remove
    //console.log(listtoRemove[z]);
    listtoRemove[z].remove();
}
console.log("Achievements Left: for "+ input + " " + document.getElementsByClassName("achieveRow").length);