var styleSheetSuffix = ""; if((navigator.appVersion.indexOf("Mac")!= -1)){ styleSheetSuffix += "_nav" ; // tested Safari 2.0.4, Firefox 1.5.0.8, and Netscape 7.2 for Mac } else { if (navigator.appVersion.indexOf("MSIE")>= 1) { var iInfo = navigator.appVersion.indexOf("MSIE ") + 5; var sInfo = navigator.appVersion.substring(iInfo); sVersion = parseInt(sInfo) + ""; if(sVersion < 7) { styleSheetSuffix += "_ie" ; } else { styleSheetSuffix += "_nav" ; } } else { styleSheetSuffix += "_nav" ; } } document.write("");