There used to be a very nice attribute to the script tag that defined what version of JavaScript is present between the script tags. You’d say language=”JavaScript1.3″ and older browsers that only supported JavaScript 1.2 wouldn’t run the code. Unfortunately this is not the case anymore – the attribute has been deprecated and browsers don’t really support it anymore. IE says that JS 1.3 is the latest version it supports, Firefox and Safari support 1.7. Opera supports 1.5 and surprisingly all the 2.x version (huh?) and the browser in Blackberry (the reason for testing this) supports everything.
I know – search for what you need, but in this case I don’t really want to check for all the objects and methods that I need…
Check your own browsers JavaScript support.