// Check if the browser is cool:
  agent = navigator.userAgent;
  rollovercheck = 0;
  if (agent.substring(0,7) == "Mozilla")
  {
    if (parseInt(agent.substring(8,9)) >= 3) { rollovercheck=1; }
    if (agent.indexOf("MSIE 3") != -1) { rollovercheck=0; }
  }

if (rollovercheck) {  // If browser is cool, preload images
                                          
kpk1 = new Image();
kpk1.src ="images/nav/toplogo.jpg";
kpk1a = new Image();
kpk1a.src ="images/nav/toplogo.jpg";
kpk2 = new Image();
kpk2.src ="images/nav/kpk1.gif";
kpk2a = new Image();
kpk2a.src ="images/nav/kpk2.gif";
kpk3 = new Image();
kpk3.src ="images/nav/jws1.gif";
kpk3a = new Image();
kpk3a.src ="images/nav/jws2.gif";
kpk4 = new Image();
kpk4.src ="images/nav/kws1.gif";
kpk4a = new Image();
kpk4a.src ="images/nav/kws2.gif";
kpk5 = new Image();
kpk5.src ="images/nav/kld1.gif";
kpk5a = new Image();
kpk5a.src ="images/nav/kld2.gif";
kpk6 = new Image();
kpk6.src ="images/nav/kps1.gif";
kpk6a = new Image();
kpk6a.src ="images/nav/kps2.gif";
kpk7 = new Image();
kpk7.src ="images/nav/wd1.gif";
kpk7a = new Image();
kpk7a.src ="images/nav/wd2.gif";
kpk8 = new Image();
kpk8.src ="images/nav/employment1.gif";
kpk8a = new Image();
kpk8a.src ="images/nav/employment2.gif";
kpk9 = new Image();
kpk9.src ="images/nav/contact1.gif";
kpk9a = new Image();
kpk9a.src ="images/nav/contact2.gif";
kpk10 = new Image();
kpk10.src ="images/nav/ats1.gif";
kpk10a = new Image();
kpk10a.src ="images/nav/ats2.gif";

}

function changeImage(imgDocID,imgObjName) {

   if (rollovercheck) {  // If browser is cool, swap images
   {document.images[imgDocID].src = eval(imgObjName + ".src");}
                                }
}