Show logo/ad while content loads at back end

I want to place a Logo/ad in front of content, there are ways to do it but the problem with them is that they use JS show/hide method. What happens is that the content doesn’t load while user is watching the logo/ad, which results as double waiting for the user first for the logo/ad and then the actual flash content loading.
So I was thinking if there is a way that a logo/ad could be displayed and at the same time flash content continues to load at the back end.
I didn’t ask for a loader that continues to appear until at the back end flash content is done loading, because I found only one script that was able to do so using Jquery but it was designed to work with fixed pixels while my flash content is based on %ages

Live Demo:

Note: Sorry for providing blogspot link but JsFiddle is not an option for a person living in Afghanistan with 5KBps but still if you feel that I am missing something please let me know I will edit it and try my best to provide as relevant question as possible ^^

Relevant Markup:
Button for lightbox or Modal Window

<a class="poplight" href="#?w=100%" rel="popup_name"><img alt="play game" class="happybutton" onmouseout=";this.filters.alpha.opacity=80" onmouseover=";this.filters.alpha.opacity=100" src="" style="opacity: 0.8;" /></a>
  <div class="popup_block" id="popup_name">
     <script type="text/javascript">
        $('a.poplight[href^=#]').click(function() {
                .attr('frameborder', 0)
                .attr('allowTransparency', false)
                .attr('scrolling', 'no')
                .attr('width', '100%')
                .attr('height', '98%')
                .attr('src', '')


#fade {
    	display: none;
    	background: #000;
    	position: fixed; left: 0; top: 0;
    	width: 100%; height: 100%;
    	opacity: .80;
    	z-index: 9999999;

       width: 98.95%; height: 98.2%;
    	display: none;
    	padding: 0px;
    	font-size: 1em;
    	position: fixed;
    	top: 0px; left: 0px;
    	z-index: 999999999;
    	-webkit-box-shadow: 0px 0px 20px #000;
    	-moz-box-shadow: 0px 0px 20px #000;
    	box-shadow: 0px 0px 20px #000;
    	-webkit-border-radius: 10px;
    	-moz-border-radius: 10px;
    	border-radius: 10px;
    .close {
    	float: right;
    	margin: 0 2px 0 0;

JS (actually Jquery)

<script type=&quot;text/javascript&quot;>
        	//When you click on a link with class of poplight and the href starts with a #
        	$('a.poplight[href^=#]').click(function() {
        		var popID = $(this).attr('rel'); //Get Popup Name
        		var popURL = $(this).attr('href'); //Get Popup href to define size
        		//Pull Query &amp; Variables from href URL
        		var query= popURL.split('?');
        		var dim= query[1].split('&amp;');
        		var popWidth = dim[0].split('=')[1]; //Gets the first query string value

        		//Fade in the Popup and add close button
        		$('#' + popID).fadeIn().css({ 'width': Number( popWidth ) }).prepend('<a href=&quot;#&quot; title=&quot;Close It&quot; class=&quot;close&quot;><img src=&quot;; alt=&quot;Close&quot; width=&quot;20&quot; height=&quot;20&quot; /></a>');
        		//Define margin for center alignment (vertical + horizontal) - we add 80 to the height/width to accomodate for the padding + border width defined in the css
        		var popMargTop = ($('#' + popID).height() + 0) / 0;
        		var popMargLeft = ($('#' + popID).width() + 0) / 0;
        		//Apply Margin to Popup
        		$('#' + popID).css({
        			'margin-top' : -popMargTop,
        			'margin-left' : -popMargLeft
        		//Fade in Background
        		$('body').append('<div id=&quot;fade&quot;></div>'); //Add the fade layer to bottom of the body tag.
        		$('#fade').css({'filter' : 'alpha(opacity=80)'}).fadeIn(); //Fade in the fade layer
        		return false;
        	//Close Popups and Fade Layer
        	$('a.close, #fade').live('click', function() { //When clicking on the close or fade layer...
        	  	$('#fade , .popup_block').fadeOut(function() {
        			$('#fade, a.close').remove();
        	}); //fade them both out
        		return false;