Browser detection with jQuery

Those who create web apps to work for the widest possible audience, know that overcoming browser quirks is an unfortunate part of the job. The two greatest pains for me are IE6 and IE7, both common browsers with an uncommon ability to screw up my pages. (I think IE8 is a wonderful improvement to this line of browsers.) Recently I found out how to determine if a browser is IE7 or lower using this handy jQuery statement:

<script type="text/javascript">
if ($.browser.msie && (parseFloat($.browser.version) < 8)) {
     // Do something for IE7 or IE6
     // Like replace some image src with a gif (instead of transparent png)
     // or change a style to look right
}
</script>

Of course, you must have the jQuery library included on the page before this. But this little script is great for dealing with those demanding IE-specific quirks, like display:inline uniqueness, select-box borders and transparent png support.