<!--Hide code from old browsers 
if (document.images) {
	
	//preload department nav
	markmeth_on     = new Image();              				
	markmeth_off     = new Image();   
    markmeth_on.src = "/images/navd_markmeth_on.gif";    
	markmeth_off.src = "/images/navd_markmeth_off.gif";
	prolaunch_on     = new Image();              				             
	prolaunch_off     = new Image();   
    prolaunch_on.src = "/images/navd_prolaunch_on.gif";    
	prolaunch_off.src = "/images/navd_prolaunch_off.gif";
	prowork_on     = new Image();              				
	prowork_off     = new Image();   
    prowork_on.src = "/images/navd_prowork_on.gif";    
	prowork_off.src = "/images/navd_prowork_off.gif";
	agencyserv_on     = new Image();              				
	agencyserv_off     = new Image();   
    agencyserv_on.src = "/images/navd_agencyserv_on.gif";    
	agencyserv_off.src = "/images/navd_agencyserv_off.gif";
}