Does this script actually load content

Hello,
Well I have script that claims that it loads the flash content while it is showing seconds or advertisement. So as I don't know about scripts I have no Idea if it actually do that or not as What I visually see is that it let flash content load once the seconds of disappears. So that's why I want an expert advice on it.
And how the seconds of this script works Only if this script actually do what It claims, then I would like to know when does it send alert to load the content (as I would like to put the alert from the start) and how to show it for more or less seconds.

Relevant Markup:
Live Demo http://files.cryoffalcon.com/MyFootPrint/Ad Loader.html

What is the live demo made up of:

  <div class="colorchooser">
    <!--more-->
    <div class="displaygame_part">
    <center>
    <div id="ads" class="ads">
    <h1>
    ADVERTISEMENT</h1>
    <center>
    <script type="text/javascript"><!--
    google_ad_client = "ca-pub-0726197409084548";
    /* bloghutsgame */
    google_ad_slot = "5324930917";
    google_ad_width = 336;
    google_ad_height = 280;
    //-->
    </script>
    <script type="text/javascript"
    src="http://pagead2.googlesyndication.com/pagead/show_ads.js">
    </script></center>
    To skip it click <a href="javascript:ShowHide();">here</a>
    <script type="text/javascript">
    window.onload = function() {
    startCountDown(8, 1000);
    }
    
    function startCountDown(i, p, f) {
    // store parameters
    var pause = p;
    var fn = f;
    // make reference to div
    var countDownObj = document.getElementById("countDown");
    if (countDownObj == null) {
    return;
    }
    countDownObj.count = function(i) {
    // write out count
    countDownObj.innerHTML = i;
    if (i == 0) {
    // execute function
    fn();
    // stop
    return;
    }
    setTimeout(function() {
    // repeat
    countDownObj.count(i - 1);
    },
    pause
    );
    }
    // set it going
    countDownObj.count(i);
    }
    </script>
    <center>
    <img border="0" height="117" width="201" src="@---put the link of the image of fancy pants(its the loader)---@" />
    </center>
    <div id="countDown" style="display: inline;">
    </div>
    seconds for the game to load...
    </div>
    <div id="gamecontent" style="visibility:hidden; display:none">
    <div class="gofulldear">
    <object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,29,0" width="100%" height="100%">   <param name="movie" value="http://games.balloontowerdefense.net/b/balloon_tower_defense_4_expansion.swf">
    <param name="quality" value="high">
    <param name="allowNetworking" value="internal">
    <embed src="http://games.balloontowerdefense.net/b/balloon_tower_defense_4_expansion.swf" width="100%" height="100%" align="center" quality="high" pluginspage="http://www.macromedia.com/go/getflashplayer" type="application/x-shockwave-flash" allownetworking="internal"></embed> </object>
    </div>
    </div>
    <script type="text/javascript">
        function turn_vis_on(id) {
            if (document.getElementById) { // DOM3 = IE5, NS6
                document.getElementById(id).style.display = 'inline';
                obj = document.getElementById(id);
                obj.style.visibility = "visible";
                }
        }
        function turn_vis_off(id){
            if (document.getElementById) { // DOM3 = IE5, NS6
                document.getElementById(id).style.display = 'none';
                obj = document.getElementById(id);
                obj.style.visibility = "hidden";
            }
        }
        function ShowHide()
        {
            turn_vis_off("ads");
            turn_vis_on("gamecontent");
            // alert('4sec!');
        }
        document.getElementById("ads").style.zIndex = 100;
        timeoutID = setTimeout(ShowHide, 15000);
    
        </script>
    </center></div>
    </div>

Code (markup):

Note: It is game so there can be sound or music in it./ For any more information requirement please let me know I will edit it, so to make it as relevant as possible^^.