function getCSS(uri){
	if (navigator.userAgent.indexOf("Win") != -1) {
		if (navigator.appName.indexOf("Microsoft")  != -1) {
			cssname="wie";
		} else {
			if (navigator.appVersion.charAt(0) < 5) {
				cssname="wnn";
			}else{
				cssname="wie";
			}
		}
	} else {
		if (navigator.appName.indexOf("Microsoft")  != -1) {
			cssname="mie";
		} else {
			if (navigator.appVersion.charAt(0) < 5) {
				cssname="mnn";
			}else{
				cssname="mie";
			}
		}
}
document.write('<link rel="stylesheet" href="'+uri+'/css/base_'+cssname+'.css" type="text/css">')
}