if(FlashDetect.installed){	
    var flashvars = {}; 
    var params = {wmode:"transparent"}; 
    var attributes = {}; 
    swfobject.embedSWF("web-design.swf?2009061701", "mainswf", "920", "370", "9.0.0","images/expressInstall.swf", flashvars, params, attributes); 
}