var goodbrowser = 0;
var button_down = "";
browserName = navigator.appName.substring(0,8);
browserVer = parseFloat(navigator.appVersion);
if ((browserName == "Netscape" && browserVer >= 3)||
(browserName == "Microsof" && browserVer >= 3.01)||
(browserName == "Microsof" && parseInt(navigator.appVersion) >= 4)){
        goodbrowser = 1;
        }
        
if (goodbrowser) {
    roly = new MakeArray(5);
    roly[1].src = "images/nav/images2/nav-1-on.gif";
    roly[2].src = "images/nav/images2/nav-2-on.gif";
    roly[3].src = "images/nav/images2/nav-3-on.gif";
    roly[4].src = "images/nav/images2/nav-4-on.gif";
    roly[5].src = "images/nav/images2/nav-5-on.gif";
    }


function MakeArray(n){
        if (goodbrowser) {
                this.length = n;
                for (var i = 1; i<=n; i++) {
                        this[i] = new Image();
                        }
                return this
                }
        }       
        
function rollover(GifFunct,GifName) {
        if (goodbrowser) {
                Dim= new Image();            
                Dim.src ="images/nav/images2/"+GifName+"-off.gif";          
                Lit= new Image();
                Lit.src = "images/nav/images2/"+GifName+"-on.gif";
                document.images[GifName].src = eval(GifFunct + ".src");
                }
        }