function isIE(){return navigator.appName.indexOf("Microsoft",0)!=-1}function isNN(){return navigator.appName.indexOf("Netscape",0)!=-1}function isMoz(){return navigator.userAgent.indexOf("Gecko")!=-1}function isSafari(){return navigator.userAgent.indexOf("Safari")!=-1}function isiCab(){return navigator.appName.indexOf("iCab")!=-1}function isOpera(){return window.opera?true:false}function isMoz3(){return(navigator.userAgent.indexOf("Gecko")!=-1&&navigator.userAgent.indexOf("Firefox/3")!=-1)}function isIE8(){return(navigator.userAgent.indexOf("MSIE")!=-1&&navigator.userAgent.indexOf("Trident/4.0")!=-1)};