compatibleBrowser = testBrowserVersion() ;

if (compatibleBrowser) {

      ButtonOn1 = new Image(40, 25);
      ButtonOn1.src = "images/nav-Home-02.gif";
      ButtonOff1 = new Image(40, 25);
      ButtonOff1.src = "images/nav-Home-01.gif";
      
      ButtonOn2 = new Image(40, 25);
      ButtonOn2.src = "images/nav-Clinic-02.gif";
      ButtonOff2 = new Image(40, 25);
      ButtonOff2.src = "images/nav-Clinic-01.gif";
      
      ButtonOn3 = new Image(40, 25);
      ButtonOn3.src = "images/nav-Symptoms-02.gif";
      ButtonOff3 = new Image(40, 25);
      ButtonOff3.src = "images/nav-Symptoms-01.gif";
      
      ButtonOn4 = new Image(40, 25);
      ButtonOn4.src = "images/nav-Treatments-02.gif";
      ButtonOff4 = new Image(40, 25);
      ButtonOff4.src = "images/nav-Treatments-01.gif";
      
      ButtonOn5 = new Image(40, 25);
      ButtonOn5.src = "images/nav-BeforeAfter-02.gif";
      ButtonOff5 = new Image(40, 25);
      ButtonOff5.src = "images/nav-BeforeAfter-01.gif";
            
      ButtonOn6 = new Image(40, 25);
      ButtonOn6.src = "images/nav-FAQs-02.gif";
      ButtonOff6 = new Image(40, 25);
      ButtonOff6.src = "images/nav-FAQs-01.gif";
      
      ButtonOn7 = new Image(40, 25);
      ButtonOn7.src = "images/nav-TalkToUs-02.gif";
      ButtonOff7 = new Image(40, 25);
      ButtonOff7.src = "images/nav-TalkToUs-01.gif";
      
      
}

function testBrowserVersion() {
        if (navigator.appVersion.substring(0, 2) == 2.0){
                return false;
        }
        else {
                appVerionNum = navigator.appVersion.substring(0, 3)
                if ((navigator.appName == "Netscape") && (appVerionNum >= 3.0)) {
                        return true ;
                } else if(appVerionNum >= 4.0) {
                        return true ;
                } else {
                        return false ;
                }
        }
}


function replaceImage(what, where) {
        if (compatibleBrowser) {
                imgWhat = eval(what + ".src");
                document.images[where].src = imgWhat;
        }
}



function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}