if (document.images) {

  image1on = new Image();
  image1on.src = "images/patients_on.jpg";

  image2on = new Image();
  image2on.src = "images/providers_on.jpg";

  image3on = new Image();
  image3on.src = "images/employers_on.jpg";

  image4on = new Image();
  image4on.src = "images/brokers_on.jpg";

  image5on = new Image();
  image5on.src = "images/select_on.jpg";

  image6on = new Image();
  image6on.src = "images/syh_on.jpg";

  image7on = new Image();
  image7on.src = "images/products_on.jpg";

  image8on = new Image();
  image8on.src = "images/know_facts_on.jpg";

  image9on = new Image();
  image9on.src = "images/events_on.jpg";
  
  image10on = new Image();
  image10on.src = "images/contact_on.jpg"; 
  
  image11on = new Image();
  image11on.src = "images/glossary_on.jpg"; 
  
  image12on = new Image();
  image12on.src = "images/sjrmc_on.jpg";     
  
  image13on = new Image();
  image13on.src = "images/benefits_on.jpg";   
  
  image14on = new Image();
  image14on.src = "images/faq_on.jpg";        
  
  image15on = new Image();
  image15on.src = "images/rewards_on.jpg";   
    
  image16on = new Image();
  image16on.src = "images/enroll_on.jpg";  
     
  image17on = new Image();
  image17on.src = "images/weight_mgmt_on.jpg"; 
      
  image18on = new Image();
  image18on.src = "images/testimonials_on.jpg";  

  image19on = new Image();
  image19on.src = "images/enroll2_on.jpg";   

  image20on = new Image();
  image20on.src = "images/home_on.jpg";     
  
//
         
  image1off = new Image();
  image1off.src = "images/patients_off.jpg";

  image2off = new Image();
  image2off.src = "images/providers_off.jpg";

  image3off = new Image();
  image3off.src = "images/employers_off.jpg";

  image4off = new Image();
  image4off.src = "images/brokers_off.jpg";

  image5off = new Image();
  image5off.src = "images/select_off.jpg";

  image6off = new Image();
  image6off.src = "images/syh_off.jpg";

  image7off = new Image();
  image7off.src = "images/products_off.jpg";

  image8off = new Image();
  image8off.src = "images/know_facts_off.jpg";

  image9off = new Image();
  image9off.src = "images/events_off.jpg";

  image10off = new Image();
  image10off.src = "images/contact_off.jpg";  
  
  image11off = new Image();
  image11off.src = "images/glossary_off.jpg"; 
  
  image12off = new Image();
  image12off.src = "images/sjrmc_off.jpg";       
  
  image13off = new Image();
  image13off.src = "images/benefits_off.jpg";         
  
  image14off = new Image();
  image14off.src = "images/faq_off.jpg";   
  
  image15off = new Image();
  image15off.src = "images/rewards_off.jpg";     
  
  image16off = new Image();
  image16off.src = "images/enroll_off.jpg";    
  
  image17off = new Image();
  image17off.src = "images/weight_mgmt_off.jpg";    
  
  image18off = new Image();
  image18off.src = "images/testimonials_off.jpg";    

  image19off = new Image();
  image19off.src = "images/enroll2_off.jpg";    

  image20off = new Image();
  image20off.src = "images/home_off.jpg";    
     
}

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

function turnOff(imageName) {
  if (document.images) {
    document[imageName].src = eval(imageName + "off.src");
  }
}
function changeImages() {
  if (document.images) {
    for (var i=0; i<changeImages.arguments.length; i+=2) {
      document[changeImages.arguments[i]].src = eval(changeImages.arguments[i+1] + ".src");
    }
  }
}