window.onerror = null;
var ver4 = (navigator.appVersion.charAt(0) >= "4");
var NN4  = ver4 && (navigator.appName.charAt(0) == "N");
var IE4  = ver4 && (navigator.appName.charAt(0) == "M");
var NN3  = ((navigator.appVersion.charAt(0) == "3") &&
            (navigator.appName.charAt(0) == "N"));

if(NN3 || NN4 || IE4){
var img_b = new Array();
img_b[0] = new Image(); img_b[0].src = "img/tectron258_0.jpg"
img_b[1] = new Image(); img_b[1].src = "img/tectron258_1.jpg"
img_b[2] = new Image(); img_b[2].src = "img/polysep258_0.jpg"
img_b[3] = new Image(); img_b[3].src = "img/polysep258_1.jpg"
img_b[4] = new Image(); img_b[4].src = "img/hisep258_0.jpg"
img_b[5] = new Image(); img_b[5].src = "img/hisep258_1.jpg"
}

function B_in(nam,num){
if(NN3 || NN4 || IE4){
document.images[nam].src = img_b[num].src;
}
}

function B_out(nam,num){
if(NN3 || NN4 || IE4){
document.images[nam].src = img_b[num].src;
return false;
}
}