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();
//トップのメニュー
img_b[1]= new Image(); img_b[1].src = "common/mb01a.gif"
img_b[2]= new Image(); img_b[2].src = "common/mb02a.gif"
img_b[3]= new Image(); img_b[3].src = "common/mb03a.gif"
img_b[4]= new Image(); img_b[4].src = "common/mb04a.gif"
                                       
img_b[11]= new Image(); img_b[11].src = "common/mb01.gif"
img_b[12]= new Image(); img_b[12].src = "common/mb02.gif"
img_b[13]= new Image(); img_b[13].src = "common/mb03.gif"
img_b[14]= new Image(); img_b[14].src = "common/mb04.gif"

//文字サイズ用
img_b[101] = new Image(); img_b[101].src = "common/text_sb.gif"
img_b[102] = new Image(); img_b[102].src = "common/text_mb.gif"
img_b[103] = new Image(); img_b[103].src = "common/text_lb.gif"

img_b[111] = new Image(); img_b[111].src = "common/text_s.gif"
img_b[112] = new Image(); img_b[112].src = "common/text_m.gif"
img_b[113] = new Image(); img_b[113].src = "common/text_l.gif"

//サイドメニュー
img_b[21]= new Image(); img_b[21].src = "images/top01b2.gif"
img_b[22]= new Image(); img_b[22].src = "images/top02b2.gif"
img_b[23]= new Image(); img_b[23].src = "images/top03b2.gif"
img_b[24]= new Image(); img_b[24].src = "images/top04b2.gif"
img_b[25]= new Image(); img_b[25].src = "images/top05b2.gif"
img_b[26]= new Image(); img_b[26].src = "images/top06b2.gif"

img_b[31]= new Image(); img_b[31].src = "images/top01b1.gif"
img_b[32]= new Image(); img_b[32].src = "images/top02b1.gif"
img_b[33]= new Image(); img_b[33].src = "images/top03b1.gif"
img_b[34]= new Image(); img_b[34].src = "images/top04b1.gif"
img_b[35]= new Image(); img_b[35].src = "images/top05b1.gif"
img_b[36]= new Image(); img_b[36].src = "images/top06b1.gif"

//更新履歴
img_b[51]= new Image(); img_b[51].src = "images/history_b2.gif"

img_b[61]= new Image(); img_b[61].src = "images/history_b1.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;
}