只适用于ie：

漂亮的下拉框

// ViaSelect Environment Constants
var SS_ENV = new Object();
SS_ENV.IE_Version = new Number(((window.navigator.appVersion.split('; '))[1].split(' '))[1]);
SS_ENV.CR = new Object();
SS_ENV.CR.ReverseBackground = '#E2519C';
SS_ENV.CR.ReverseText = 'white';
SS_ENV.CR.Border = '#D55C9A';
SS_ENV.CR.BorderActive = '#FF6CB7';
SS_ENV.ImgPrefix = 'http://www.viafriend.com/images';
SS_ENV.DefaultHeight = 20;
SS_ENV.ButtonWidth = 13;
SS_ENV.OptionsDiv