var os = navigator.userAgent
    var br = navigator.appName
    var cssHTML = '<link rel="stylesheet" type="text/css" href="'

    if( os.indexOf("Mac") != -1 )
    	if( br.indexOf("Microsoft") != -1 )
    		cssHTML += '../../css/mac_ie.css' 
    	else if( br.indexOf("Netscape") != -1 )
    		cssHTML += '../../css/mac_nn.css' 
    	else
    		cssHTML += '../../css/all.css' 
    else if( os.indexOf("Win") != -1 )
    	 if( br.indexOf("Microsoft") != -1 )
    		cssHTML += '../../css/win_ie.css' 
    	else if( br.indexOf("Netscape") != -1 )
    		cssHTML += '../../css/win_nn.css' 
    	else
    		cssHTML += '../../css/all.css' 
    else
         cssHTML += '../../css/all.css' 

    cssHTML += '">'

    document.write(cssHTML)