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[1] = new Image(); img_b[1].src = "img/menu_com2.gif"
img_b[2] = new Image(); img_b[2].src = "img/menu_wel2.gif"
img_b[3] = new Image(); img_b[3].src = "img/menu_hou2.gif"
img_b[4] = new Image(); img_b[4].src = "img/menu_ser2.gif"
img_b[5] = new Image(); img_b[5].src = "img/menu_enq2.gif"
img_b[6] = new Image(); img_b[6].src = "img/menu_lin2.gif"

img_b[7]= new Image(); img_b[7].src= "img/menu_com1.gif"
img_b[8]= new Image(); img_b[8].src= "img/menu_wel1.gif"
img_b[9]= new Image(); img_b[9].src= "img/menu_hou1.gif"
img_b[10]= new Image(); img_b[10].src= "img/menu_ser1.gif"
img_b[11]= new Image(); img_b[11].src= "img/menu_enq1.gif"
img_b[12]= new Image(); img_b[12].src= "img/menu_lin1.gif"

}

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;
}