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;
    
   
    clients_off= new Image();
    clients_off.src = "images/clients_off.gif";
    clients_over = new Image();
    clients_over.src = "images/clients_over.gif";
    
    contact_off= new Image();
    contact_off.src = "images/contact_off.gif";
    contact_over = new Image();
    contact_over.src = "images/contact_over.gif";
    
   
    
    
    }    

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





browserName = navigator.appName;

browserVer = parseInt(navigator.appVersion);



ns3up = (browserName == "Netscape" && browserVer >= 3);

ie4up = (browserName.indexOf("Microsoft") >= 0 && browserVer >= 4);



function doPic(imgName) {

    if (ns3up || ie4up) {
        imgOn = ("" + imgName);
        parent.document.mainpic.src = imgOn;
    }
}