var preloadFlag = false;

function newImage(arg) {
if (document.images) {
rslt = new Image();
rslt.src = arg;
return rslt;
}
}

function changeImages() {
if (document.images && (preloadFlag == true)) {
for (var i=0; i<changeImages.arguments.length; i+=2) {
document[changeImages.arguments[i]].src =
changeImages.arguments[i+1];
}
}
}

function preloadImages() {
if (document.images) {
// ********** 先読みする画像
map_01_over = newImage("../images/top/top_map_tokyo.gif");
map_02_over = newImage("../images/top/top_map_toka.gif");
map_03_over = newImage("../images/top/top_map_saitama.gif");
map_04_over = newImage("../images/top/top_map_chiba.gif");
map_05_over = newImage("../images/top/top_map_ibaraki.gif");
map_06_over = newImage("../images/top/top_map_kanagawa.gif");
map_07_over = newImage("../images/top/top_map_yamanashi.gif");
map_08_over = newImage("../images/top/top_map_aichi.gif");
map_09_over = newImage("../images/top/top_map_mie.gif");
map_10_over = newImage("../images/top/top_map_kyoto.gif");
map_11_over = newImage("../images/top/top_map_ohsaka.gif");
map_12_over = newImage("../images/top/top_map_hyogo.gif");
map_13_over = newImage("../images/top/top_map_shiga.gif");
map_14_over = newImage("../images/top/top_map_wakayama.gif");
map_15_over = newImage("../images/top/top_map_nara.gif");
map_16_over = newImage("../images/top/top_map_shimane.gif");
map_17_over = newImage("../images/top/top_map_tottori.gif");
map_18_over = newImage("../images/top/top_map_hiroshima.gif");
map_19_over = newImage("../images/top/top_map_yamaguchi.gif");
map_20_over = newImage("../images/top/top_map_okayama.gif");
map_21_over = newImage("../images/top/top_map_kagawa.gif");
map_22_over = newImage("../images/top/top_map_tokushima.gif");
map_23_over = newImage("../images/top/top_map_kochi.gif");
map_24_over = newImage("../images/top/top_map_ehime.gif");
map_25_over = newImage("../images/top/top_map_shizuoka.gif");
preloadFlag = true;
}
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}