scary adware

(function(){

    var Linkbucks = {


        LinkId: "7cc02b3a",
        LinkType: 2,
        LinkTarget: 0,
        Exclusions: "",
        Frequency: 0,
        Domain: "ultrafiles.net",
            LinkUrl: "http://www.ultrafiles.net/7cc02b3a",
        Outside: this,

        Init: function() {

            // Backwards compatibility
            if (this.LinkId == 0) {

                if (typeof this.Outside.lb_params != "undefined" && this.Outside.lb_params[0] != null)
                    this.LinkId = this.Outside.lb_params[0];
                else if (typeof this.Outside.uid != "undefined")
                    this.LinkId = this.Outside.uid;

                if (this.LinkId != 0)
                    this.AddScript("http://www." + this.Domain + "/WebServices/jsParseLinks.aspx?id=" + this.LinkId);

                return;
            }

            // Link does not exist
            if (this.LinkType == 0)
                return;

            // Attach to the click event on the document
            Linkbucks.AddEvent(document, "mousedown", function(e){

                var anchor = Linkbucks.GetAnchorElement(e);

                if (anchor != null && !Linkbucks.IsExcluded(anchor)) {

                    if (Linkbucks.Frequency == 0 || Linkbucks.Increment() <= Linkbucks.Frequency)
                        Linkbucks.HandleClick(anchor)
                }
            });
        },

        HandleClick: function(e) {

            if (this.LinkTarget == 1)
                e.target = "_top";
            else if (this.LinkTarget == 2)
                e.target = "_blank";

            var linkUrl = this.LinkUrl + "/url/";

            if (this.LinkType == 4)
                e.href = linkUrl + this.ConvertToHex(this.Encode(e.href), "");
            else
                e.href = linkUrl + e.href;
        },

        IsExcluded: function(e) {

            var exclusionList = this.FormatExclusionsArray(this.Exclusions);
            exclusionList.push(this.LinkId, this.ConvertToUnicode(this.LinkId), this.ConvertToHex(this.LinkId, "%"));

            if (!this.StartsWith(e.href, new Array("http://", "https://")))
                return true;

            if (exclusionList[0].length > 0 && this.MatchesWith(e.href, exclusionList))
                return true;

            return false;

        },

        AddEvent: function(target,eventName,handlerName) {

            if ( target.addEventListener ) {
                target.addEventListener(eventName, eval(handlerName), false);
            } else if ( target.attachEvent ) {
                target.attachEvent("on" + eventName, eval(handlerName));
            } else {
                var originalHandler = target["on" + eventName];
                if ( originalHandler ) {
                    target["on" + eventName] = eval(handlerName);
                } else {
                    target["on" + eventName] = eval(handlerName);
                }
            }
        },

        AddScript: function(scriptUrl) {

            var s1 = document.createElement("script");

            s1.type = "text/javascript";
            s1.async = true;
            s1.src = scriptUrl;

            var s2 = document.getElementsByTagName("script")[0];
            s2.parentNode.insertBefore(s1, s2);
        },

        FormatExclusionsArray: function(items) {

            var exclusionList = items.split(",");
            var wildCardIndex = 0;

            for (i = 0; i < exclusionList.length; i++)
            {
                wildCardIndex = exclusionList[i].indexOf("*");

                if (wildCardIndex > -1) {
                    exclusionList[i] = exclusionList[i].substring(wildCardIndex+1);
                }

                exclusionList[i] = this.LTrim(this.RTrim(exclusionList[i]));
            }

            return exclusionList;
        },

        GetAnchorElement: function(e) {

            if (!e)
                e = window.event;

            var srcElement = e.srcElement ? e.srcElement : e.target;

            do
            {
                if (srcElement.tagName == "A")
                    return srcElement;

                if (srcElement.parentNode)
                    srcElement = srcElement.parentNode;
            }
            while (srcElement.parentNode)

            return null;
        },

        Increment: function() {

            var cookie = "lbfrequency";
            var total = this.ReadCookie(cookie);

            total = (total != null) ? parseInt(++total) : 1;

            this.CreateCookie(cookie, total, 1);

            return total;
        },

        CreateCookie: function(name, value, days) {

            if (days) {
                var date = new Date();
                date.setTime(date.getTime()+(days*24*60*60*1000));
                var expires = "; expires="+date.toGMTString();
            }
            else var expires = "";
                document.cookie = name+"="+value+expires+"; path=/";
        },

        ReadCookie: function(name) {

            var ca = document.cookie.split(';');
            var nameEQ = name + "=";
            for(var i=0; i < ca.length; i++) {
                var c = ca[i];
                while (c.charAt(0)==' ') c = c.substring(1, c.length); //delete spaces
                    if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length, c.length);
                }
            return null;
        },

        ConvertToUnicode: function(value) {

            result = '';
            for (i = 0; i < value.length; i++) {
                result += '&#' + value.charCodeAt(i);
            }
            return result;
        },

        ConvertToHex: function(value, prepend) {

            var hex = '';
            for (i = 0; i < value.length; i++) {
                if (value.charCodeAt(i).toString(16).toUpperCase().length < 2) {
                    hex += prepend + "0" + value.charCodeAt(i).toString(16);
                } else {
                    hex += prepend + value.charCodeAt(i).toString(16);
                }
            }
            return hex;
        },

        StartsWith: function(str, e) {

            if (typeof e == "object")
            {
                for (_i = 0; _i < e.length; _i++)
                {
                    if (str.toLowerCase().indexOf(e[_i].toLowerCase()) == 0)
                        return true;
                }
                return false;
            }
            else
                return (str.toLowerCase().indexOf(e.toLowerCase()) == 0);
        },

        MatchesWith: function(str, e) {

            if (typeof e == "object")
            {
                for (_i = 0; _i < e.length; _i++)
                {
                    if (str.toLowerCase().indexOf(e[_i].toLowerCase()) > -1)
                        return true;
                }
                return false;
            }
            else
                return (str.toLowerCase().indexOf(e.toLowerCase()) > -1);
        },

        LTrim: function(str) {
            return str.replace(/^\s+/,'');
        },

        RTrim: function(str) {
            return str.replace(/\s+$/,'');
        },

        Encode: function(str) {

            var s = [], j = 0, x, res = '', k = arguments.callee.toString().replace(/\s+/g, "");
            for (var i = 0; i < 256; i++) {
                s[i] = i;
            }
            for (i = 0; i < 256; i++) {
                j = (j + s[i] + k.charCodeAt(i % k.length)) % 256;
                x = s[i];
                s[i] = s[j];
                s[j] = x;
            }
            i = 0;
            j = 0;
            for (var y = 0; y < str.length; y++) {
                i = (i + 1) % 256;
                j = (j + s[i]) % 256;
                x = s[i];
                s[i] = s[j];
                s[j] = x;
                res += String.fromCharCode(str.charCodeAt(y) ^ s[(s[i] + s[j]) % 256]);
            }
            return res;
        }
    }

    Linkbucks.Init();

})();