var cssDir = '../css/';
var cssTags = '<link rel="stylesheet" type="text/css" href="';
var flag = null;
var _poor = 'CSS no support'; 
if (_win) {
if (_ns6) {
flag = 'wie';
document.open();
document.write(cssTags + cssDir + flag + '.css" title="WinNS6_style">');
document.close();
}
else if (_ns4 || _ns4up || _nav) {
flag = 'wns';
document.open();
document.write(cssTags + cssDir + flag + '.css" title="WinNS_style">');
document.close();
}
else if (_ie4 || _ie4up || _ie5 || _ie5up) {
flag = 'wie';
document.open();
document.write(cssTags + cssDir + flag + '.css" title="WinIE_style">');
document.close();
}
else if (_ns2 || _ns3 || _ie3) {
flag = _poor + ' browser...';
}
else if (_opera) {
flag = 'wie';
document.open();
document.write(cssTags + cssDir + flag + '.css" title="WinOpera_style">');
document.close();
}
else {
flag = _poor + ' browser...';
}
}
else if (_mac) {
if (_ns6) {
flag = 'mac';
document.open();
document.write(cssTags + cssDir + flag + '.css" title="MacNS6_style">');
document.close();
}
else if (_ns4 || _ns4up || _nav) {
flag = 'mac';
document.open();
document.write(cssTags + cssDir + flag + '.css" title="MacNS_style">');
document.close();
}
else if (_ie5 || _ie5up) {
flag = 'mac';
document.open();
document.write(cssTags + cssDir + flag + '.css" title="MacIE_style">');
document.close();
}
else if (_ie4 || _ie45 || _ie4up) {
flag = 'mac';
document.open();
document.write(cssTags + cssDir + flag + '.css" title="MacIE_style">');
document.close();
}
else if (_ns2 || _ns3 || _ie3) {
flag = _poor + ' browser...';
}
else if (_opera) {
flag = 'mie';
document.open();
document.write(cssTags + cssDir + flag + '.css" title="MacOpera_style">');
document.close();
}
else if (_icab) {
flag = 'icab';
}
else {
flag = _poor + ' browser...';
}
}
else {
flag = _poor + ' platform...';
}