Recently, Pageflakes released their new RSS Reader. It provides all the features of a good desktop RSS reader and with AJAX, it gives you the smoothness of regular desktop reader. The good thing of a web application is that you don't have to install it in your PC and you can use it from anywhere. The reader has two view modes: Outlook View & Newspaper View. In both view mode, you can resize the panes just like any desktop application. You can also use hotkeys for navigation. At the bottom, there ......
Finally I found a simple solution for the FireFox error: "[Exception... "'Permission denied to set property XULElement.selectedIndex' when calling method: [nsIAutoCompletePopup::sele... nsresult: "0x8057001e (NS_ERROR_XPC_JS_THREW_STRI... This error occurs when focus() is called. I was reported in https://bugzilla.mozilla.or... but still no fix/patch from mozilla. To avoid this error, you have to turn off autocomplete. from javascript, you can do that in following way: ......
Today, I have read a useful article which explains the performance issues for javascript execution on Opera. I think, this is also applicable for regular javascript execution on other browsers too.
http://userjs.org/help/tutorials/efficient-code