//==========================
//	画像切り替え処理
//==========================

// 画像の読み込み
var img = new Array()
img["about"		] = new Image();img["about"		].src="img/pc_menu_about_2.jpg";
img["access"	] = new Image();img["access"	].src="img/pc_menu_access_2.jpg";
img["artist"	] = new Image();img["artist"	].src="img/pc_menu_artist_2.jpg";
img["contact"	] = new Image();img["contact"	].src="img/pc_menu_contact_2.jpg";
img["goods"		] = new Image();img["goods"		].src="img/pc_menu_goods_2.jpg";
img["ticket"	] = new Image();img["ticket"	].src="img/pc_menu_ticket_2.jpg";
img["mixi"		] = new Image();img["mixi"		].src="img/pc_mixi_2.jpg";
img["myspace"	] = new Image();img["myspace"	].src="img/pc_myspace_2.jpg";

img["goodswhite"	] = new Image();img["goodswhite"	].src="img/pc_goods_white_2.jpg";
img["goodsblack"	] = new Image();img["goodsblack"	].src="img/pc_goods_black_2.jpg";
img["goodsgreen"	] = new Image();img["goodsgreen"	].src="img/pc_goods_green_2.jpg";

// ロールオーバー時
function rollOver( myIdName )
{
	newIdName = getString( myIdName );
	document.images[myIdName].src = img[newIdName].src;
}

// ロールアウト時
function rollOut( myIdName )
{
	document.images[myIdName].src = "img/pc_menu_" + myIdName + "_1.jpg";
}

// ロールアウト時 (バナー用)
function rollOutBanner( myIdName )
{
	newIdName = getString( myIdName );
	document.images[myIdName].src = "img/pc_" + newIdName + "_1.jpg";
}

// ロールアウト時 (グッズ)
function rollOutGoods( myIdName, imgName )
{
	document.images[myIdName].src = "img/pc_" + imgName + "_1.jpg";
}

// 文字列の抜き取り
function getString( myIdName )
{
	checkId = myIdName.indexOf("_");
	if( checkId != -1 ){
		myIdName = myIdName.substring( 0, checkId );
	}
	
	return myIdName;
}