// Netscape 3.0 compatibility (image swapping)
                        compat = false;
                        if( parseInt( navigator.appVersion ) >= 3 ) {
                                compat = true; 
                        }
        
                // cache images 
                        if( compat )
									{
									
								l_home= new Image();
                                l_home.src = "/img/l_home.gif";
                                lo_home= new Image();
                                lo_home.src = "/img/lo_home.gif";	
								
								l_about= new Image();
                                l_about.src = "/img/l_about.gif";
                                lo_about= new Image();
                                lo_about.src = "/img/lo_about.gif";	

								l_attn= new Image();
                                l_attn.src = "/img/l_attn.gif";
                                lo_attn= new Image();
                                lo_attn.src = "/img/lo_attn.gif";	
								
				l_private= new Image();
                                l_private.src = "/img/l_private.gif";
                                lo_private= new Image();
                                lo_private.src = "/img/lo_private.gif";	
								
				l_business= new Image();
                                l_business.src = "/img/l_business.gif";
                                lo_business= new Image();
                                lo_business.src = "/img/lo_business.gif";	
								
								l_news= new Image();
                                l_news.src = "/img/l_news.gif";
                                lo_news= new Image();
                                lo_news.src = "/img/lo_news.gif";	
								
								l_join= new Image();
                                l_join.src = "/img/l_join.gif";
                                lo_join= new Image();
                                lo_join.src = "/img/lo_join.gif";
								
								l_contact= new Image();
                                l_contact.src = "/img/l_contact.gif";
                                lo_contact= new Image();
                                lo_contact.src = "/img/lo_contact.gif";
								
								l_offices= new Image();
                                l_offices.src = "/img/l_offices.gif";
                                lo_offices= new Image();
                                lo_offices.src = "/img/lo_offices.gif";
								


									
							    }
               // swap cached images
                        function swap(x, y) {
                                if( compat ) {
                                        document.images[x].src=eval(y+'.src'); 
                                }
                        }