var base = "/images/";

if (document.images) {            
            img1on = new Image();   img1on.src = base + "about01.gif"; 
            img2on = new Image();   img2on.src = base + "contact01.gif";  
            img3on = new Image();   img3on.src = base + "members01.gif";
            img4on = new Image();   img4on.src = base + "employees01.gif"; 
            img5on = new Image();   img5on.src = base + "providers01.gif";  
            img6on = new Image();   img6on.src = base + "employers01.gif";
            img7on = new Image();   img7on.src = base + "brokers01.gif";
            img8on = new Image();   img8on.src = base + "nav_chiro01.gif";
            img9on = new Image();   img9on.src = base + "nav_pt01.gif"; 
            img10on = new Image();   img10on.src = base + "nav_acup01.gif";  
            img11on = new Image();   img11on.src = base + "nav_well01.gif";
            img12on = new Image();   img12on.src = base + "nav_eap01.gif"; 
            img13on = new Image();   img13on.src = base + "nav_app01.gif";  
            img14on = new Image();   img14on.src = base + "nav_providers01.gif"; 
            
            eimg8on = new Image();   eimg8on.src = base + "nav_wellprog01.gif";
            eimg9on = new Image();   eimg9on.src = base + "nav_eap01.gif"; 
            eimg10on = new Image();   eimg10on.src = base + "nav_healthfit01.gif";
            eimg11on = new Image();   eimg11on.src = base + "nav_employees_main01.gif";
            
            empimg8on = new Image();   empimg8on.src = base + "nav_wellprog01.gif";
            empimg9on = new Image();   empimg9on.src = base + "nav_eap01.gif"; 
            empimg10on = new Image();   empimg10on.src = base + "nav_employers_main03.gif";
                  
            memimg8on = new Image();   memimg8on.src = base + "nav_chiro01.gif";
            memimg9on = new Image();   memimg9on.src = base + "nav_pt01.gif"; 
            memimg10on = new Image();   memimg10on.src = base + "nav_altmed01.gif";  
            memimg11on = new Image();   memimg11on.src = base + "nav_healthfit01.gif";
            memimg12on = new Image();   memimg12on.src = base + "nav_wellprog01.gif"; 
            memimg13on = new Image();   memimg13on.src = base + "nav_app01.gif";  
            memimg14on = new Image();   memimg14on.src = base + "nav_mem_main03.gif"; 
            
            bimg8on = new Image();   bimg8on.src = base + "nav_about01.gif";
            bimg9on = new Image();   bimg9on.src = base + "nav_faq01.gif"; 
            bimg10on = new Image();   bimg10on.src = base + "nav_contact01.gif";  
            bimg11on = new Image();   bimg11on.src = base + "nav_hpbroker_main03.gif";
            
            
            
            img1off = new Image();   img1off.src = base + "about02.gif"; 
            img2off = new Image();   img2off.src = base + "contact02.gif";  
            img3off = new Image();   img3off.src = base + "members02.gif";
            img4off = new Image();   img4off.src = base + "employees02.gif"; 
            img5off = new Image();   img5off.src = base + "providers02.gif";  
            img6off = new Image();   img6off.src = base + "employers02.gif";
            img7off = new Image();   img7off.src = base + "brokers02.gif";
            img8off = new Image();   img8off.src = base + "nav_chiro02.gif";
            img9off = new Image();   img9off.src = base + "nav_pt02.gif"; 
            img10off = new Image();   img10off.src = base + "nav_acup02.gif";  
            img11off = new Image();   img11off.src = base + "nav_well02.gif";
            img12off = new Image();   img12off.src = base + "nav_eap02.gif"; 
            img13off = new Image();   img13off.src = base + "nav_app02.gif";  
            img14off = new Image();   img14off.src = base + "nav_providers02.gif"; 
              
            eimg8off = new Image();   eimg8off.src = base + "nav_wellprog02.gif";
            eimg9off = new Image();   eimg9off.src = base + "nav_eap02.gif"; 
            eimg10off = new Image();   eimg10off.src = base + "nav_healthfit02.gif";
            eimg11off = new Image();   eimg11off.src = base + "nav_employees_main02.gif";    
            
            empimg8off = new Image();   empimg8off.src = base + "nav_wellprog02.gif";
            empimg9off = new Image();   empimg9off.src = base + "nav_eap02.gif"; 
            empimg10off = new Image();   empimg10off.src = base + "nav_employers_main03.gif";   
            
            memimg8off = new Image();   memimg8off.src = base + "nav_chiro02.gif";
            memimg9off = new Image();   memimg9off.src = base + "nav_pt02.gif"; 
            memimg10off = new Image();   memimg10off.src = base + "nav_altmed02.gif";  
            memimg11off = new Image();   memimg11off.src = base + "nav_healthfit02.gif";
            memimg12off = new Image();   memimg12off.src = base + "nav_wellprog02.gif"; 
            memimg13off = new Image();   memimg13off.src = base + "nav_app02.gif";  
            memimg14off = new Image();   memimg14off.src = base + "nav_mem_main03.gif";    
            
            bimg8off = new Image();   bimg8off.src = base + "nav_about02.gif";
            bimg9off = new Image();   bimg9off.src = base + "nav_faq02.gif"; 
            bimg10off = new Image();   bimg10off.src = base + "nav_contact02.gif";  
            bimg11off = new Image();   bimg11off.src = base + "nav_hpbroker_main03.gif"; 
        }

    function imgOn(imgName) {
            if (document.images) {
                document[imgName].src = eval(imgName + "on.src");       
            }
    }

    function imgOff(imgName) {
            if (document.images) {
                document[imgName].src = eval(imgName + "off.src");        
            }
    }