browserName=navigator.appName; browserVer=parseInt(navigator.appVersion);

if ((browserName=="Netscape" && browserVer>=3) || (browserName=="Microsoft Internet Explorer" && browserVer>=4)) version="n3"; else version="n2";

if (version=="n3") {

navhomeon = new Image();
navhomeon.src = "http://www.krn.com/img/nav_home_on.gif"; 
navhomeoff = new Image();
navhomeoff.src = "http://www.krn.com/img/nav_home_off.gif"; 
navaboutuson = new Image();
navaboutuson.src = "http://www.krn.com/img/nav_aboutus_on.gif"; 
navaboutusoff = new Image();
navaboutusoff.src = "http://www.krn.com/img/nav_aboutus_off.gif"; 
navsearchbymanufactureron = new Image();
navsearchbymanufactureron.src = "http://www.krn.com/img/nav_searchbymanufacturer_on.gif"; 
navsearchbymanufactureroff = new Image();
navsearchbymanufactureroff.src = "http://www.krn.com/img/nav_searchbymanufacturer_off.gif"; 
navsearchinventoryon = new Image();
navsearchinventoryon.src = "http://www.krn.com/img/nav_searchinventory_on.gif"; 
navsearchinventoryoff = new Image();
navsearchinventoryoff.src = "http://www.krn.com/img/nav_searchinventory_off.gif"; 
navcustomersupporton = new Image();
navcustomersupporton.src = "http://www.krn.com/img/nav_customersupport_on.gif"; 
navcustomersupportoff = new Image();
navcustomersupportoff.src = "http://www.krn.com/img/nav_customersupport_off.gif";
navcontactuson = new Image();
navcontactuson.src = "http://www.krn.com/img/nav_contactus_on.gif"; 
navcontactusoff = new Image();
navcontactusoff.src = "http://www.krn.com/img/nav_contactus_off.gif";
navkrnblogon = new Image();
navkrnblogon.src = "http://www.krn.com/img/nav_krnblog_on.gif"; 
navkrnblogoff = new Image();
navkrnblogoff.src = "http://www.krn.com/img/nav_krnblog_off.gif";


}

function img_act(imgName)  { if (version == "n3")   { imgOn = eval(imgName + "on.src"); document [imgName].src = imgOn; } }

function img_inact(imgName)   { if (version == "n3") { imgOff = eval(imgName + "off.src"); document [imgName].src = imgOff; } }