/* ===============================================
	common
=============================================== */

/* ===============================================
	BrowserNameŽę“¾
=============================================== */
	function getBrowserName(){
		var uName = navigator.userAgent.toUpperCase();
		var aName = navigator.appName.toUpperCase();
		var br = "false";
		br = (uName.indexOf("OPERA") != -1) ? "OPERA" : br;
		br = (uName.indexOf("SAFARI") != -1) ? "SAFARI" : br;
		br = (aName.indexOf("NETSCAPE") != -1) ? "NETSCAPE" : br;
		br = (uName.indexOf("FIREFOX") != -1) ? "FIREFOX" : br;
		br = (aName.indexOf("MICROSOFT") != -1) ? "IE" : br;
		return br;
	}

	function mainhead(){
		var ran = Math.floor(Math.random() * 7) + 1;
		ran = (ran == 8) ? 7 : ran;
		var writehead = '<img src="/home/zeroworld/img/head/bnr_' +
		ran +
		'.jpg" alt="" width="780" height="100" /><br />';
		document.write(writehead);
	}

	function tok2bannarMove(){
		var br = getBrowserName();
		var idBodyW;
		if ( br == "IE" ) {
			idBodyW = document.body.clientWidth;
		} else if ( br == "FIREFOX" ) {
			idBodyW = document.documentElement.clientWidth;
		} else {
			idBodyW = document.all ? document.body.clientWidth : document.body.innerWidth;
		}
		var tok2bannar01X;
		tok2bannar01X = ( idBodyW < 770 ) ? 790 : (idBodyW - 770)/2 + 790;
		tok2bannar01X = parseInt(tok2bannar01X);
		changeLayerDisplay("tok2-bannar01","block");
		setLayerPositionX("tok2-bannar01",tok2bannar01X);
	}

	function tok2bannarMove02(){
		changeLayerDisplay("tok2-bannar01","none");
	}


/* ===============================================
	BBS
=============================================== */
	function bbsWin(){
		var url = "http://akto.sakura.ne.jp/" +
		"cgi-bin/exu" +
		"ser/pw/ze" +
		"ro/nbs/nb" +
		"s.cgi";
		newwin = window.open(url,"zerobbs");
	}