Did you ever have problems to test your javascript or stylesheets on different browsers? Thhe most simple answer is to install Firefox, Opera, Safari, etc on your development computer and use system Internet explorer if using a Windows OS.
For Firefox, Opera, Safari and browsers like these testing with latest version has an acceptable result because most of people using them are get informed about new versions and they'll upgrade to latest version within one month at the most latest time.
But testing in IE is really confusing. IE6 and IE7 are using rendering and javascript engines wit...