var name=navigator.appName;
var agent=navigator.userAgent;
var ver=parseInt(navigator.appVersion.substring(0,1));
var ie4=false;
var nc4=false;
var nn3=false;
var nn6=false;
var op6=false;
var Safari=false;
var other=false;
var mac=false;

// ブラウザのバージョンチェック
if ( (agent.indexOf("Opera 6") != -1) || (agent.indexOf("Opera/6") != 
-1) || (agent.indexOf("Opera 7") != -1) || (agent.indexOf("Opera/7") 
!= -1) || (agent.indexOf("Opera 9") != -1) || 
(agent.indexOf("Opera/9") != -1) ){
	op6=true;
}else if(agent.indexOf("Safari") != -1){
	nn6=true;
}else if(name=="Netscape" && ver>=5){
	nn6=true;
}else if (name=="Netscape" && ver>=4){
	nc4=true;
}else if (name=="Microsoft Internet Explorer" && ver>=4){
	ie4=true;
}else if (name=="Netscape" && ver>=3){
	nn3=true;
	other=true;
}else{
	other=true;
}
var macinf=agent.indexOf("Mac",0);
if(macinf > 0) {
	mac=true;
}

// ヘッダー部分のSwap
if(nn3 || nc4 || ie4 || nn6 || op6){

	// アクティブ画像
	var ActiveImgH="-1";

	// ロールオーバー画像配列の初期化
	var imgH = new Array();


// Sidebar Navigation

//Pape rCraft side menu
//Pape rCraft How to
imgH['craft01_def'] = new Image(); imgH['craft01_def'].src = "/nakajima/imagelib/craft_snm_craft01.gif";
imgH['craft01_ovr'] = new Image(); imgH['craft01_ovr'].src = "/nakajima/imagelib/craft_snm_craft01-over.gif";

imgH['craft02_def'] = new Image(); imgH['craft02_def'].src = "/nakajima/imagelib/craft_snm_craft02.gif";
imgH['craft02_ovr'] = new Image();  imgH['craft02_ovr'].src = "/nakajima/imagelib/craft_snm_craft02-over.gif";

imgH['craft03_def'] = new Image(); imgH['craft03_def'].src = "/nakajima/imagelib/craft_snm_craft03.gif";
imgH['craft03_ovr'] = new Image(); imgH['craft03_ovr'].src = "/nakajima/imagelib/craft_snm_craft03-over.gif";

imgH['craft04_def'] = new Image(); imgH['craft04_def'].src = "/nakajima/imagelib/craft_snm_craft04.gif";
imgH['craft04_ovr'] = new Image(); imgH['craft04_ovr'].src = "/nakajima/imagelib/craft_snm_craft04-over.gif";

imgH['craft05_def'] = new Image(); imgH['craft05_def'].src = "/nakajima/imagelib/craft_snm_craft05.gif";
imgH['craft05_ovr'] = new Image(); imgH['craft05_ovr'].src = "/nakajima/imagelib/craft_snm_craft05-over.gif";

}
function SwapImgH(ImgSrc, ImgDest){
	if(ActiveImgH == ImgSrc){
		return false;
	}
		var imgnameH = ImgSrc + '_' + ImgDest;
		document.images[ImgSrc].src = imgH[imgnameH].src;
	return true;
}

function MactH(ImgSrc, ImgDest) {
	SwapImgH(ImgSrc, ImgDest);
	var preactH= ActiveImgH;
	ActiveImgH = ImgSrc;
	if(preactH != "-1"){
		SwapImgH(preactH , 'def');
	}
}


// サブメニューのSwap
if(nn3 || nc4 || ie4 || nn6 || op6){

	// アクティブ画像
	var ActiveImg="-1";

	// ロールオーバー画像配列の初期化
	var imgM = new Array();


// Topmenu Navigation
	imgM['tmn_race_def'] = new Image(); imgM['tmn_race_def'].src="/nakajima/images/top_mn_race.gif";
	imgM['tmn_race_ovr'] = new Image(); imgM['tmn_race_ovr'].src="/nakajima/images/top_mn_race-over.gif";

	imgM['tmn_team_def'] = new Image(); imgM['tmn_team_def'].src="/nakajima/images/top_mn_team.gif";
	imgM['tmn_team_ovr'] = new Image(); imgM['tmn_team_ovr'].src="/nakajima/images/top_mn_team-over.gif";

	imgM['tmn_craft_def'] = new Image(); imgM['tmn_craft_def'].src="/nakajima/images/top_mn_craft.gif";
	imgM['tmn_craft_ovr'] = new Image(); imgM['tmn_craft_ovr'].src="/nakajima/images/top_mn_craft-over.gif";

	imgM['tmn_gallery_def'] = new Image(); imgM['tmn_gallery_def'].src="/nakajima/images/top_mn_gallery.gif";
	imgM['tmn_gallery_ovr'] = new Image(); imgM['tmn_gallery_ovr'].src="/nakajima/images/top_mn_gallery-over.gif";


}
function SwapImg(ImgSrc, ImgDest){
	if(ActiveImg == ImgSrc){
		return false;
	}
		var imgname = ImgSrc + '_' + ImgDest;
		document.images[ImgSrc].src = imgM[imgname].src;
	return true;
}

function Mact(ImgSrc, ImgDest) {
	SwapImg(ImgSrc, ImgDest);
	var preact = ActiveImg;
	ActiveImg = ImgSrc;
	if(preact != "-1"){
		SwapImg(preact , 'def');
	}
}