//メインメニューのロールオーバー
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];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		menu_topics_top_over = newImage("/jewelry/images/menu_topics_top-over.gif");
		menu_about_top_over = newImage("/jewelry/images/menu_about_top-over.gif");
		menu_product_top_over = newImage("/jewelry/images/menu_product_top-over.gif");
		menu_bridal_top_over = newImage("/jewelry/images/menu_bridal_top-over.gif");
		menu_purchase_top_over = newImage("/jewelry/images/menu_purchase_top-over.gif");
		menu_faq_top_over = newImage("/jewelry/images/menu_faq_top-over.gif");
		
		menu_topics_over = newImage("/jewelry/images/menu_topics-over.gif");
		menu_about_over = newImage("/jewelry/images/menu_about-over.gif");
		menu_product_over = newImage("/jewelry/images/menu_product-over.gif");
		menu_bridal_over = newImage("/jewelry/images/menu_bridal-over.gif");
		menu_purchase_over = newImage("/jewelry/images/menu_purchase-over.gif");
		menu_faq_over = newImage("/jewelry/images/menu_faq-over.gif");
		
		submenu_product_02_over = newImage("/jewelry/images/submenu_product00-over.gif");
		submenu_product_03_over = newImage("/jewelry/images/submenu_product01-over.gif");
		submenu_product_04_over = newImage("/jewelry/images/submenu_product02-over.gif");
		submenu_product_05_over = newImage("/jewelry/images/submenu_product03-over.gif");
		submenu_product_06_over = newImage("/jewelry/images/submenu_product04-over.gif");
		
		submenu_bridal_02_over = newImage("/jewelry/images/submenu_bridal01-over.gif");
		submenu_bridal_03_over = newImage("/jewelry/images/submenu_bridal02-over.gif");
		submenu_bridal_04_over = newImage("/jewelry/images/submenu_bridal03-over.gif");
		submenu_bridal_05_over = newImage("/jewelry/images/submenu_bridal04-over.gif");
		preloadFlag = true;
	}
}


//--------------------------------------------------------------------------------
//--------------------------------------------------------------------------------
//--------------------------------------------------------------------------------


// 各OSとブラウザ別に違うCSSファイルを読み込む
  
  // OS
  var Win = navigator.userAgent.indexOf("Win") != -1 ? true : false 
  var Mac = navigator.userAgent.indexOf("Mac") != -1 ? true : false 
  var X11 = navigator.userAgent.indexOf("X11") != -1 ? true : false 
  
  if (document.getElementById) {
  
    if (Win) cssurl = "/jewelry/css/win.css"  // Win W3C対応ブラウザ用CSS
    else if(Mac) cssurl = "/jewelry/css/mac.css"  // Mac W3C対応ブラウザ用CSS
    else if(X11) cssurl = "/jewelry/css/win.css"  // X11 W3C対応ブラウザ用CSS
  
  } else if (document.all) {
  
    if (Win) cssurl = "/jewelry/css/win.css"  // Win IE用CSS
    else if(Mac) cssurl = "/jewelry/css/mac.css"  // Mac IE用CSS
  
  } else if (document.layers) {
  
    if (Win) cssurl = "/jewelry/css/win.css"  // Win N4用CSS
    else if(Mac) cssurl = "/jewelry/css/mac.css"  // Mac N4用CSS
    else if(X11) cssurl = "/jewelry/css/win.css"  // X11 N4用CSS
  
  } else {
    cssurl ="/jewelry/css/win.css"  // その他用CSS
  }
  
  //CSS読み込みタグlinkの書き出し
  document.write('<link rel="stylesheet" ')
  document.write('      type="text/css"  ')
  document.write('      href="'+cssurl+'"')
  document.write('>')