https://www.unix.com/clientscript/vbulletin_multi_quote.js?v=387

function mq_init(D) {
    var C = fetch_cookie("vbulletin_multiquote");

    if (C != null && C != "") { C = C.split(",") }
    else { C = new Array() } var E; var A = fetch_tags(D, "i");
    for (var B = 0; B < A.length; B++) {
        if (A[B].id && A[B].id.substr(0, 3) == "mq_") {
            E = A[B].id.substr(3); A[B].onclick = function (F) { return mq_click(this.id.substr(3)) };
            change_mq_image(E, (PHP.in_array(E, C) > -1 ? true : false))
        }
    }
}
function mq_click(F) {
    var D = fetch_cookie("vbulletin_multiquote");
    var B = new Array(); var E = false; if (D != null && D != "") {
        D = D.split(","); for (C in D) {
            if (!YAHOO.lang.hasOwnProperty(D, C)) { continue } if (D[C] == F) { E = true }
            else { if (D[C]) { B.push(D[C]) } }
       }
    } change_mq_image(F, (E ? false : true));
    if (!E) {
        B.push(F);
        if (typeof mqlimit != "undefined" && mqlimit > 0) {
            for (var C = 0; C < (B.length - mqlimit); C++) {
                var A = B.shift();
                change_mq_image(A, false)
            }
        }
    } set_cookie("vbulletin_multiquote", B.join(",")); return false
}
function change_mq_image(C, B) {
    var A = "mq_"+C;
    
         if (B == true) {
            if($("#"+A).hasClass("far"))
            {
              $("#"+A).removeClass("far");
              $("#"+A).addClass("fas");
        }
            }
        else {
            if($("#"+A).hasClass("fas"))
            {
              $("#"+A).removeClass("fas");
              $("#"+A).addClass("far");
            }
        }
  }
//mq_init(fetch_object("posts"));