var aNam = navigator.appName;
var aVer = navigator.appVersion;
var uAge = navigator.userAgent;

if (uAge.indexOf('Win') != -1 && uAge.indexOf('Netscape6') != -1 && uAge.indexOf('Netscape6/6.2') == -1) {
		for(i=0;i<document.styleSheets.length;i++){
			void(document.styleSheets.item(i).disabled=true);
		}
} else {

	var gCssFile = new Array();

	if (aVer.charAt(0) >= 4) {
		gCssFile[gCssFile.length] = "base.css";
		if (uAge.indexOf('Win') != -1) {
			if (aNam.indexOf('Microsoft') != -1) {
				gCssFile[gCssFile.length] = "win_ie.css";
			}
			if (uAge.indexOf('Opera') != -1) {
				gCssFile[gCssFile.length] = "win_opera.css";
			}
			if (aNam.indexOf('Netscape') != -1) {
				gCssFile[gCssFile.length] = "win_nn.css";
			}
			if (uAge.indexOf('Gecko') != -1 && uAge.indexOf('Windows NT 6.0') != -1) {
				gCssFile[gCssFile.length] = "win_gecko2.css";
			} else if (uAge.indexOf('Gecko') != -1) {
				gCssFile[gCssFile.length] = "win_gecko.css";
			}
		} else if (uAge.indexOf("Mac") != -1) {
			if (aNam.indexOf('Microsoft') != -1) {
				gCssFile[gCssFile.length] = "mac_ie.css";
			}
			if (aNam.indexOf('Netscape') != -1) {
				gCssFile[gCssFile.length] = "mac_nn.css";
			}
			if (uAge.indexOf('Gecko') != -1) {
				gCssFile[gCssFile.length] = "mac_gecko.css";
			}
		}
	}
	
	for (i in gCssFile) {
		document.open();
		document.write('<LINK REL="stylesheet" TYPE="text/css" HREF="/common/files/font/' + gCssFile[i] + '">');
		document.close();
	}
}