//Check Browser Version
bName = navigator.appName;
bVer = parseInt(navigator.appVersion);
    if ((bName == "Netscape" && bVer >= 3) || 
        (bName == "Microsoft Internet Explorer" && bVer >= 4)) br = "n3"; 
    else br = "n2";
// preload images:
if (br== "n3") {
	//Active Images
    img1on = new Image(); img1on.src = "images/btnhome_on.gif";       // Home Page
    img2on = new Image(); img2on.src = "images/btnlinear_on.gif";     // linear
	img3on = new Image(); img3on.src = "images/btnsingle_on.gif";     // single-turn
	img4on = new Image(); img4on.src = "images/btnMulti_on.gif";      // multi-turn
	img5on = new Image(); img5on.src = "images/btnTurn_on.gif";       // dials
	img6on = new Image(); img6on.src = "images/btnJoystick_on.gif";   // Joystick
	img7on = new Image(); img7on.src = "images/btnFootCon_on.gif";    // Foot Controllers
	img8on = new Image(); img8on.src = "images/btnRohs_on.gif";       // ROHS
	img9on = new Image(); img9on.src = "images/btnvalve_on.gif";      // valve actuators
	imgaon = new Image(); imgaon.src = "images/btncross_on.gif";      // cross reference
	imgbon = new Image(); imgbon.src = "images/btnsales_on.gif";      // ETI Sales
	imgcon = new Image(); imgcon.src = "images/btndist_on.gif";       // ETI Distributors
	
	//Inactive Images
    img1off = new Image(); img1off.src = "images/btnhome_off.gif";  
    img2off = new Image(); img2off.src = "images/btnlinear_off.gif";    
	img3off = new Image(); img3off.src = "images/btnsingle_off.gif";  
	img4off = new Image(); img4off.src = "images/btnMulti_off.gif";  
	img5off = new Image(); img5off.src = "images/btnTurn_off.gif";
	img6off = new Image(); img6off.src = "images/btnJoystick_off.gif"; 
	img7off = new Image(); img7off.src = "images/btnFootCon_off.gif"; 
	img8off = new Image(); img8off.src = "images/btnRohs_off.gif"; 
	img9off = new Image(); img9off.src = "images/btnvalve_off.gif"; 
	imgaoff = new Image(); imgaoff.src = "images/btncross_off.gif";
	imgboff = new Image(); imgboff.src = "images/btnsales_off.gif";
	imgcoff = new Image(); imgcoff.src = "images/btndist_off.gif";
	}
	
function imgAct(imgName) {if (br== "n3") {
    document[imgName].src = eval(imgName + "on.src");}}

function imgInact(imgName) {if (br== "n3") {
    document[imgName].src = eval(imgName + "off.src");}}