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_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_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];}
}

var lang = "jp";

window.onload = function(){
	var isMSIE = /*@cc_on!@*/false;
	if (isMSIE) {
		if(document.body.getAttribute("className") == "en"){
			//alert('IE&english');
			lang = "en";
		}
	} else {
		if(document.body.getAttribute("class") == "en"){
			//alert('not IE&english');
			lang = "en";
		}
	}
	preloadNaviImages();
}

// onload img (if cannot display flash)
function preloadNaviImages(){
	if(lang == 'en'){
		folderName = 'menu_daitai_e/';
		var altImg = new Array('enkaku', 'e-service', 'jigyo_bm', 'jigyo_fm', 'jigyo_os', 'jigyo_pb', 'kihon', 'krinen', 'yakuin');
	} else {
		folderName = 'menu_daitai/';
		var altImg = new Array('access', 'enkaku', 'e-service', 'gaiyou', 'home', 'jigyo', 'jigyo_bm', 'jigyo_fm', 'jigyo_os', 'jigyo_pb', 'kihon', 'kouken', 'krinen', 'press', 'saiyou', 'toiawase', 'yakuin');
	}
	for(i=0; i< altImg.length;i++){
		MM_preloadImages('/images/' + folderName  + altImg[i] + '_a.gif');
	}
}