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Controlling your JavaScript

by: bs0d
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First thing is first...we will discuss exactly what JavaScript is, how to manage JavaScript in your browser, what the differences are between Java and JavaScript are and why you might need JavaScript.

JavaScript was developed in 1995 by Netscape and by definiton is: "A scripting language used to create interactive web sites." Java can be included in HTML as php would, or; can be called upon as an external file - like php also. From what I hear, it is one of the easier languages to learn in programming.

Microsoft includes JavaScript with their browser, although it was developed by Netscape. However, their are differences in how each browser supports it. Microsoft Internet Explorer. By default, JavaScript is 'enabled' for a more pleasurable browsing experience. However, JavaScript can have some nasty tricks - and you might want to 'disable' JavaScript completely. Keep in mind though, some websites may require JavaScript to be enabled for their systems to function properly. JavaScript was made for good purposes to provide you with a more interactive, exciting and more pleasurable browsing experience.

JavaScript: The good, the bad and the ugly...

What are the good things JavaScript can do? Why should I browse with JavaScript enabled? Well; as I mentioned before, JavaScript can be used to run entire websites, and If you visit their site and you have it disabled, nothing would work. You may see JavaScript used to make scripts to maintain data and webpages, other various effects from "MouseOver's" to text manipulation, online polls, picture galleries and much more.

Now that we've got an idea of the good things of JavaScript, why would I want to disable JavaScript? Yes; JavaScript can be nasty. Like all good things, some bad is always present. It can be used to flood you with annoying pop-ups, it can move your browser all across the screen, crash your browser and access your IP, as well as many more devious tricks.

If you want an idea of what it might be able to do, pay a visit to one of these sites:

But usually, these are only used by so called "script kiddies" and no professional website or organization would purposly crash your browser or cause you any dis-satisfaction.

So there are some goods and bads of JavaScript. But also before you would decide to just "prompt" you when to permit JavaScript, keep in mind that this can be very annoying. Expecially if you're visiting a site that is mainly controlled by JavaScript. I would recommend "prompting" to the person who is seeking high anomity and security or whatever. The same deal with cookies.

Differences between JavaScript and Java:

How does JavaScript differ from Java? If you're programming in the languages, then JavaScript has smaller and easier commands than Java. They are different, yet have similarities like most programming languages. They are both Object Oriented. JavaScript as discussed before is scripting that is used to parse webpages, do polls and art galleries and such. Java is used to make games and such via applets...

If you want to see an example, on this site a Java applet is used to run IRC (Internet Relay Chat). Alot of the games and such will run from applets which are basically stand alone programs execuable by your browser. Im not sure if all applets require permission to run, but many do. That kind of gives you an idea of the difference between them.

Now that you know what JavaScript is and what it's used for, im sure you have made some sort of decision wether to enable, disable or prompt you when JavaScript is run when you browse websites. So, lets explore the process of managing JavaScript on your machine.

Controlling JavaScript:

  1. Open your Microsoft Internet Explorer browser and click on TOOLS at the top of the browser window.
  2. From the list that drops down when you click it, scroll to the bottom where it says, "Internet Options..." Now, select SECURITY from the top menu that has appeared.
  3. You will now see several icons or "zones" to apply security settings. Make sure that "Internet" is hilighted (Should be a picture of the earth). Now, towards the bottom you can select "Custom" or "Default" levels of security via button. Select the "Custom Level..." button.
  4. This will bring up a security settings list. You will see that you can adjust "ActiveX Controls" towards the bottom of the ActiveX options it says "Script ActiveX controls marked safe for scripting" This is where you will enable, disable or prompt the use of JavaScript.

Just a note: if you scroll towards the bottom of the entire list, you'll see "Allow Scripting of Java Applets" - from there you can select if you would like Java applets to be recognized.


There you have it... Nothing special just another informative tutorial on some of the basics. You should now have an idea of Java and JavaScript. You should also be able to better manage the use of JavaScript by your browser. Beware of the nasty JavaScript and angry fat women on unicycles. I hope this tutorial served you well. Peace-


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