Please break my confusing between VBS and JS!

[iota]

Hi masters,
I'm a newbie and If an error occured in question, please forgive me.
As far as I've learnt, I think the VBscripts are not USED as much as the JavaScripts in enormous numbers of web pages.
Does it depend on web programmers' choice or the somewhat power of JavaScript?
Another question is " Is JavaScript Jscript?". Microsoft calls JavaScript "JScript". Are they equal or different? Or was Jscript successor of JavaScript as modified by Microsoft?
Please debug my always confusing mind.
Thanks countlessly for your time to read me and valuable answer.

Obediently yours,
iota

[liorean]

Netscape JavaScript (earlier names Mocha, LiveScript) was the original web scripting language, invented by Brendan Eich at Netscape. Microsoft backwards engineered this language and introduced their version under the name JScript. JScript was mostly compatible with Netscape JavaScript, but not entirely. To make sure language implementations were interoperable, the language was standardised as ECMA-262, commonly called ECMAScript. All implementations today try to be ECMA-262 compatible. Opera, Mozilla (spawned from Netscape), Microsoft, Apple and open source/free browsers generally contain an ECMA-262 implementation capable of running most code. Most implementations call the language "JavaScript", but Microsoft persist in calling it "JScript".

Microsoft VBScript is another language, only supported by Windows systems and only in the Internet Explorer browser.

[iota]

Thank you so much, Liorean.
I'm very pleased to vist your website and learnt everything.
http://liorean.web-graphics.com/