/* set variable */
var cssDir = '../css/';
var cssTags = '<link rel="stylesheet" type="text/css" href="';
var flag = null;
var _poor = 'Ooops! no support';
var _rich = 'Ooops! not NS6 yet...';
var _agent2 = navigator.userAgent;

/* css deverge for cross platform & cross browser */
if (_win) { // win os
	if (_ns6 || _moz) { // win_ns 6.x or mozilla
		//flag = 'wnn6';
		flag = 'NN';
		document.open('text/html');
		document.write(cssTags + cssDir + flag + '.css" title="WinNN6orUPPER_CSS">');
		document.close();
	}
	else if (_ns4 || _ns4up || _nav4) { // win_ns 4.x
		//flag = 'wnn4';
		flag = 'NN';
		document.open('text/html');
		document.write(cssTags + cssDir + flag + '.css" title="WinNN4_CSS">');
		document.close();
	}
	else if (_ie4 || _ie4up || _ie5 || _ie5up) { // win_ie
		//flag = 'wie';
		flag = 'IE';
		document.open('text/html');
		document.write(cssTags + cssDir + flag + '.css" title="WinIE_CSS">');
		document.close();
	}
	else if (_ns2 || _ns3 || _ie3) { // win no support browser
		flag = _poor + ' browser...\n' + _agent2;
		alert(flag);
	}
	else if (_opera) {
		//flag = 'wie';
		flag = 'IE';
		document.open('text/html');
		document.write(cssTags + cssDir + flag + '.css" title="WinOpera_CSS">');
		document.close();
	}
	else {
		flag = _poor + ' browser...\n' + _agent2;
		alert(flag);
	}
}

else if (_mac) { // mac os
	if (_ns6 || _moz) { // mac_ns 6.x or mozilla
		//flag = 'mnn6';
		flag = 'NN';
		document.open('text/html');
		document.write(cssTags + cssDir + flag + '.css" title="MacNN6orUPPER_CSS">');
		document.close();
		//alert(_rich);
	}
	else if (_ns4 || _ns4up || _nav4) { // mac_ns 4.x
		//flag = 'mnn4';
		flag = 'NN';
		document.open('text/html');
		document.write(cssTags + cssDir + flag + '.css" title="MacNN4_CSS">');
		document.close();
	}
	else if (_ie5 || _ie5up) { // mac_ie
		//flag = 'mie';
		flag = 'IE';
		document.open('text/html');
		document.write(cssTags + cssDir + flag + '.css" title="MacIE5orUPPER_CSS">');
		document.close();
	}
	else if (_ie4 || _ie45 || _ie4up) { // mac no support browser
		//flag = 'mie';
		flag = 'IE';
		document.open('text/html');
		document.write(cssTags + cssDir + flag + '.css" title="MacIE4_CSS">');
		document.close();
		alert(_poor + ' browser...\n' + _agent2);
	}
	else if (_ns2 || _ns3 || _ie3) { // mac no support browser
		flag = _poor + ' browser...\n' + _agent2;
		alert(flag);
	}
	else if (_opera) {
		//flag = 'mie';
		flag = 'IE';
		document.open('text/html');
		document.write(cssTags + cssDir + flag + '.css" title="MacOpera_CSS">');
		document.close();
	}
	else if (_icab) {
		flag = 'icab';
		document.open('text/html');
		document.write(cssTags + cssDir + flag + '.css" title="MaciCab_CSS">');
		document.close();
	}
	else {
		flag = _poor + ' browser...\n' + _agent2;
		alert(flag);
	}
}

else {
	flag = _poor + ' platform...';
	//alert(flag);
}

// for debug
	//alert(flag);