var buffer  = new Array(); //基本イメージバッファ
var img_dir = "img/";
var flag_on  = 1;
var flag_off = 0;

function ReadImage(){
//バッファリング
  buffer[flag_off] = new Image(20,20);  buffer[flag_off].src = img_dir+"button.gif"; 
  buffer[flag_on] = new Image(20,20);  buffer[flag_on].src = img_dir+"hover.gif";
}
// 画像セット機能
function SetImg(no,flag){
  if (no == 1) document.Menu01.src = buffer[flag].src;  else document.Menu01.src = buffer[flag_off].src;
  if (no == 2) document.Menu02.src = buffer[flag].src;  else document.Menu02.src = buffer[flag_off].src;
  if (no == 3) document.Menu03.src = buffer[flag].src;  else document.Menu03.src = buffer[flag_off].src;
  if (no == 4) document.Menu04.src = buffer[flag].src;  else document.Menu04.src = buffer[flag_off].src;
  if (no == 5) document.Menu05.src = buffer[flag].src;  else document.Menu05.src = buffer[flag_off].src;
}

function WinClose(){  window.close(); }
function WinResize(Wd,Hg){
  if(document.all){     window.resizeTo(Wd,Hg);  }
  if(document.layers){     window.outerWidth = Wd;     window.outerHeight = Hg;  }
}