function mouseOverImage( imgname, imgno){
	var img = new Array("./img/menu_home_ov.gif","./img/menu_feature_ov.gif","./img/menu_examples_ov.gif","./img/menu_price_ov.gif","./img/menu_download_ov.gif","./img/menu_link_ov.gif","./img/menu_news_ov.gif","./img/menu_support2_ov.gif","./img/menu_levelup_ov.gif","./img/menu_faq_ov.gif","./img/menu_info_service_ov.gif","./img/menu_levelup2_ov.gif","./img/menu_faq2_ov.gif","./img/menu_faq3_ov.gif");
	
	// マウスを上に置くと画像を入れ替える(画像を先に読み込む)
	// 入れ替える画像
	document.getElementsByName( imgname )[0].src = img[imgno];
}
function mouseOutImage(imgname, imgno){
	var img = new Array("./img/menu_home.gif","./img/menu_feature.gif","./img/menu_examples.gif","./img/menu_price.gif","./img/menu_download.gif","./img/menu_link.gif","./img/menu_news.gif","./img/menu_support2.gif","./img/menu_levelup.gif","./img/menu_faq.gif","./img/menu_info_service.gif","./img/menu_levelup2.gif","./img/menu_faq2.gif","./img/menu_faq3.gif");
	
	document.getElementsByName( imgname )[0].src = img[imgno];
}