function changeImage(imageName, fileName)
{
	document.images[imageName].src = fileName;
}


function commonBtnChgLang()
{
	document.getElementById("naChgLang").onmouseover = function(){
		changeImage('imgChgLang', 'common/images/to_japanese_over.gif');
	}
	document.getElementById("naChgLang").onmouseout = function(){
		changeImage('imgChgLang', 'common/images/to_japanese.gif');
	}
}

function getBrowserName(){
	var UA = navigator.userAgent;
	if (UA.indexOf("Safari") > -1) return "SAFARI";
	if (UA.indexOf("Opera") > -1) return "OPERA";
	if (UA.indexOf("Firefox") > -1) return "FIREFOX";
	if (UA.indexOf("Gecko") > -1) return "MOZILLA";
	if (UA.indexOf("MSIE") > -1) return "IE";
	if (UA.indexOf("Mozilla") > -1) return "NETSCAPE";
	return "UNKNOWN";
}


/* 表示されているタブの番号 */
/* 1:Season 2:Uptonow 3:Tickets 4:About */
var flgDispTab = 0;

function commonTabChange()
{
	document.getElementById("naLinkSeason").onmouseover = function(){
		changeImage('imgTabSeason', 'common/images/tab_season_over.jpg');
	}
	document.getElementById("naLinkSeason").onmouseout = function(){
		if( flgDispTab != 1 ){
			changeImage('imgTabSeason', 'common/images/tab_season.jpg');
		}
	}

	document.getElementById("naLinkUptonow").onmouseover = function(){
		changeImage('imgTabUptonow', 'common/images/tab_uptonow_over.jpg');
	}
	document.getElementById("naLinkUptonow").onmouseout = function(){
		if( flgDispTab != 2 ){
			changeImage('imgTabUptonow', 'common/images/tab_uptonow.jpg');
		}
	}

	document.getElementById("naLinkTickets").onmouseover = function(){
		changeImage('imgTabTickets', 'common/images/tab_tickets_over.jpg');
	}
	document.getElementById("naLinkTickets").onmouseout = function(){
		if( flgDispTab != 3 ){
			changeImage('imgTabTickets', 'common/images/tab_tickets.jpg');
		}
	}

	document.getElementById("naLinkAbout").onmouseover = function(){
		changeImage('imgTabAbout', 'common/images/tab_about_over.jpg');
	}
	document.getElementById("naLinkAbout").onmouseout = function(){
		if( flgDispTab != 4 ){
			changeImage('imgTabAbout', 'common/images/tab_about.jpg');
		}
	}


	document.getElementById("naMenuTickets").onmouseover = function(){
		changeImage('imgMenuTickets', '../season/images/menu_tickets_over.jpg');
	}
	document.getElementById("naMenuTickets").onmouseout = function(){
		changeImage('imgMenuTickets', '../season/images/menu_tickets.jpg');
	}

}

window.onload = function()
{
	commonBtnChgLang();
	commonTabChange();
}