var Mac = navigator.appVersion.indexOf('Mac',0) != -1;
var Win = navigator.appVersion.indexOf('Win',0) != -1;
var NN = navigator.appName.indexOf('Netscape',0) != -1;
var IE = navigator.appName.indexOf('Microsoft Internet Explorer',0) != -1;
var Version = navigator.appVersion.charAt(0); 

if(navigator.appVersion.indexOf('MSIE 5',0) != -1){Version++;}

function MM_openBrWindow(theURL, winName, features){
	window.open(theURL,winName,features);
}

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];}
}

//Page Top
function gotoTop(){
  window.scrollTo(0,0);
}


//ロールオーバー画像読み込み
window.onload = preloadImages;
function preloadImages(){
	var imageSrc = document.images["logo"].src;
	var strNum = imageSrc.indexOf("/common/img",0);
	var DOMAIN = imageSrc.substring(0,strNum);

	MM_preloadImages(DOMAIN + '/common/img/gnav_00_o.gif', DOMAIN + '/common/img/gnav_01_o.gif', DOMAIN + '/common/img/gnav_02_o.gif', DOMAIN + '/common/img/gnav_03_o.gif', DOMAIN + '/common/img/gnav_04_o.gif', DOMAIN + '/common/img/gnav_05_o.gif');
}


function randMainImg(){
	var imageSrc = document.images["logo"].src;
	var strNum = imageSrc.indexOf("/common/img",0);
	var DOMAIN = imageSrc.substring(0,strNum);
 var myVal = Math.floor(Math.random()*2);
	//alert(myVal);
	//alert(DOMAIN);
	if(myVal==0){
		document.write("<strong><img src='" + DOMAIN + "/img/img_main_01.jpg' alt='CLEFIA is an advanced cipher algorithm developed by Sony.' width='580' height='170'></strong>");
		}else{
		document.write("<strong><img src='" +  DOMAIN + "/img/img_main_02.jpg' alt='CLEFIA is an advanced cipher algorithm developed by Sony.' width='580' height='170'></strong>");
		}
}