improving beef.os

git-svn-id: https://beef.googlecode.com/svn/trunk@571 b87d56ec-f9c0-11de-8c8a-61c5e9addfc9

modules/beefjs/os.js

@@ -76,6 +76,7 @@ beef.os = {
 		if(this.isWinME()) return 'Windows Millenium';
 		if(this.isWin2000()) return 'Windows 2000';
 		if(this.isWinXP()) return 'Windows XP';
+		if(this.isWinServer2003()) return 'Windows Server 2003';
 		if(this.isWinVista()) return 'Windows Vista';
 		if(this.isWin7()) return 'Windows 7';