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: http://bloghutsbeta.blogspot.com/2012/04/testing-game-content-issue.html

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.style.opacity=0.8;this.filters.alpha.opacity=80" onmouseover="this.style.opacity=1;this.filters.alpha.opacity=100" src="http://farm5.static.flickr.com/4084/4998558471_27e3985c16_m.jpg" style="opacity: 0.8;" /></a>

Code (markup):

  <div class="popup_block" id="popup_name">
     <script type="text/javascript">
    $(document).ready(function(){
        $('a.poplight[href^=#]').click(function() {
            $('<iframe/>')
                .attr('frameborder', 0)
                .attr('allowTransparency', false)
                .attr('scrolling', 'no')
                .attr('width', '100%')
                .attr('height', '98%')
                .attr('src', 'http://files.cryoffalcon.com/bhgames/dressup/Celebrities/Wizard%20Fashion.html')
                .appendTo('#popup_name');
        });
    });
    </script>
    </div>

Code (markup):

CSS:

#fade { 
    	display: none; 
    	background: #000;
    	position: fixed; left: 0; top: 0;
    	width: 100%; height: 100%;
    	opacity: .80;
    	z-index: 9999999;
    }
    
    .popup_block{
       width: 98.95%; height: 98.2%;
    	display: none;
    	padding: 0px;
    	line-height:1em;
    	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 {
    	height:20px;
    	float: right;
    	margin: 0 2px 0 0;   
    }

Code (markup):

JS (actually Jquery)

<script type="text/javascript">
        $(document).ready(function(){
        						   		   
        	//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 & Variables from href URL
        		var query= popURL.split('?');
        		var dim= query[1].split('&');
        		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="#" title="Close It" class="close"><img src="http://files.cryoffalcon.com/bloghuts/images/close%20button.png" alt="Close" width="20" height="20" /></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="fade"></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;
        	});
        
        	
        });
        
        </script>

Code (markup):