Preserved Topic: Determine version of JavaScript supported by browser?

Greets!

I am trying to determine what version of JavaScript is supported by a browser, via script. I thought something like this would work:

<script type=text/JavaScript language="JavaScript1.0">

	jsver = "1.0";

</script>

<script type=text/JavaScript language="JavaScript1.1">

		jsver = "1.1";

</script>

<script type=text/JavaScript language="JavaScript1.2">

		jsver = "1.2";

</script>

<script type=text/JavaScript language="JavaScript1.3">

		jsver = "1.3";

</script>

<script type=text/JavaScript language="JavaScript1.4">

		jsver = "1.4";

</script>

<script type=text/JavaScript language="JavaScript1.5">

		jsver = "1.5";

</script>

<script type=text/JavaScript language="JavaScript1.6">

		jsver = "1.6";

</script>

<script type=text/JavaScript language="JavaScript1.7">

		jsver = "1.7";

</script>

<script type=text/JavaScript language="JavaScript1.8">

		jsver = "1.8";

</script>

<script type=text/JavaScript language="JavaScript1.9">

		jsver = "1.9";

</script>

<script type=text/JavaScript language="JavaScript2.0">

		jsver = "2.0";

</script>

But I'm not well versed enough to know if this will work. I've read that NN doesn't allow detection, which is fine. But for IE, is this correct?

Actually this is the most common method of detection I've seen.

Also I'm pretty sure that it's only up to 1.2 and then to the 2.0 spec so you shouldn't need all the others.



:[ Computers let you make more mistakes faster than any other invention in human history, with the possible exceptions of handguns and tequila. ]:

Ok, but the problem is let's say I continue that mess through 10.0 (assuming 2.0 is the current version).

IE (6.0 on Windows 2000) will return 10.0, even though that's not valid. I was looking for something I wouldn't have to update each time a new js version comes out.

Ideas?

i think I tryed to do that once, but I think I ended up trying something like this...

(JAVASCRIPT VERSION CHECK)

if (this.nav2 | | this.ie3) this.js = 1.0
else if (this.nav3 | | this.opera) this.js = 1.1
else if ((this.nav4 && (this.minor <= 4.05)) &#0124; &#0124; this.ie4) this.js = 1.2
else if ((this.nav4 && (this.minor > 4.05)) &#0124; &#0124; this.ie5) this.js = 1.3
else if (this.nav5) this.js = 1.4

But I think you would still want to update this code when newer versions of JS are released.