<!--
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 = "images/btn_hall.gif"
  img_b[2] = new Image(); img_b[2].src = "images/btn_kaiten.gif"
  img_b[3] = new Image(); img_b[3].src = "images/btn_member.gif"
  img_b[4] = new Image(); img_b[4].src = "images/btn_kishu.gif"
  img_b[5] = new Image(); img_b[5].src = "images/btn_baku.gif"
  img_b[6] = new Image(); img_b[6].src = "images/btn_forum.gif"

  img_b[11] = new Image(); img_b[11].src = "images/btn_hall_on.gif"
  img_b[12] = new Image(); img_b[12].src = "images/btn_kaiten_on.gif"
  img_b[13] = new Image(); img_b[13].src = "images/btn_member_on.gif"
  img_b[14] = new Image(); img_b[14].src = "images/btn_kishu_on.gif"
  img_b[15] = new Image(); img_b[15].src = "images/btn_baku_on.gif"
  img_b[16] = new Image(); img_b[16].src = "images/btn_forum_on.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;
}
//-->