Browser = false ;
if (((navigator.appName.charAt(0)=="N") && (navigator.appVersion.charAt(0)>=3)) || ((navigator.appName.charAt(0)=="M") && (navigator.appVersion.charAt(0)>=4))) {
    Browser = true;
    
   
    about_us_off= new Image();
    about_us_off.src = "images/nav/about_us_off.gif";
    about_us_over = new Image();
    about_us_over.src = "images/nav/about_us_over.gif";
    
    contact_us_off= new Image();
    contact_us_off.src = "images/nav/contact_us_off.gif";
    contact_us_over = new Image();
    contact_us_over.src = "images/nav/contact_us_over.gif";
    
    join_off= new Image();
    join_off.src = "images/nav/join_our_mailing_list_off.gif";
    join_over = new Image();
    join_over.src = "images/nav/join_our_mailing_list_over.gif";
    
    home_off= new Image();
    home_off.src = "images/nav/home_off.gif";
    home_over = new Image();
    home_over.src = "images/nav/home_over.gif";
    
    news_events_off= new Image();
    news_events_off.src = "images/nav/news_events_off.gif";
    news_events_over = new Image();
    news_events_over.src = "images/nav/news_events_over.gif";
    
    resources_off= new Image();
    resources_off.src = "images/nav/resources_off.gif";
    resources_over = new Image();
    resources_over.src = "images/nav/resources_over.gif";
    
    results_off= new Image();
    results_off.src = "images/nav/results_off.gif";
    results_over = new Image();
    results_over.src = "images/nav/results_over.gif";
    
    search_off= new Image();
    search_off.src = "images/nav/search_off.gif";
    search_over = new Image();
    search_over.src = "images/nav/search_over.gif";
    
    solutions_off= new Image();
    solutions_off.src = "images/nav/solutions_off.gif";
    solutions_over = new Image();
    solutions_over.src = "images/nav/solutions_over.gif";
    
   
    papers_off= new Image();
    papers_off.src = "images/headlines/papers_off.gif";
    papers_over = new Image();
    papers_over.src = "images/headlines/papers_over.gif";
    
    presentations_off= new Image();
    presentations_off.src = "images/headlines/presentations_off.gif";
    presentations_over = new Image();
    presentations_over.src = "images/headlines/presentations_over.gif";
    
    casestudies_off= new Image();
    casestudies_off.src = "images/headlines/casestudies_off.gif";
    casestudies_over = new Image();
    casestudies_over.src = "images/headlines/casestudies_over.gif";
    
    papers1_off= new Image();
    papers1_off.src = "../images/headlines/papers_off.gif";
    papers1_over = new Image();
    papers1_over.src = "../images/headlines/papers_over.gif";
    
    presentations1_off= new Image();
    presentations1_off.src = "../images/headlines/presentations_off.gif";
    presentations1_over = new Image();
    presentations1_over.src = "../images/headlines/presentations_over.gif";
    
    casestudies1_off= new Image();
    casestudies1_off.src = "../images/headlines/casestudies_off.gif";
    casestudies1_over = new Image();
    casestudies1_over.src = "../images/headlines/casestudies_over.gif";
    
    blog_off= new Image();
    blog_off.src = "images/nav/blog_off.gif";
    blog_over = new Image();
    blog_over.src = "images/nav/blog_over.gif";
    
    get_started_off= new Image();
    get_started_off.src = "images/imitigate_landing/get_started_off.gif";
    get_started_over = new Image();
    get_started_over.src = "images/imitigate_landing/get_started_over.gif";
    
    start_off= new Image();
    start_off.src = "images/imitigate_landing/start_off.gif";
    start_over = new Image();
    start_over.src = "images/imitigate_landing/start_over.gif";

    }    

function rollover(place, imgName) {
    if (Browser == true) {
        document[place].src =eval(imgName + ".src");
    }
}