if((navigator.userAgent.indexOf("Apple") > -1)){
	version="mac_safari";

}else if((navigator.userAgent.indexOf("Mac",0)!=-1)&&(navigator.userAgent.indexOf("Gecko") != -1)){
	version="mac_moz";

}else if((navigator.userAgent.indexOf("MSIE",0)!=-1)&&(navigator.userAgent.indexOf("Mac",0)!=-1)){
	version="mac_ie";

}else if((navigator.appName=="Netscape")&&(parseInt(navigator.appVersion)>=5)){
	version="win_moz";
	
}else if(navigator.userAgent.indexOf("MSIE 7",0)>1){
	version="win_ie7";
	
}else if(navigator.userAgent.indexOf("MSIE 8",0)>1){
	version="win_ie7";
	
}else{
	version="win_ie";
}

document.write('<link rel="stylesheet" type="text/css" href="/css/'+version+'.css">');