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    About Java Script


    Javascript Is The Most Popular Scripting Language On The Internet, And Works In All Major Browsers, Such As Internet Explorer, Firefox, Chrome, Opera, And Safari.
    JavaScript was designed to add interactivity to HTML pages
    JavaScript is a scripting language
    A scripting language is a lightweight programming language
    JavaScript is usually embedded directly into HTML pages
    JavaScript is an interpreted language (means that scripts execute without preliminary compilation)
    Everyone can use JavaScript without purchasing a license
    JavaScript gives HTML designers a programming tool - HTML authors are normally not programmers, but JavaScript is a scripting language with a very simple syntax! Almost anyone can put small "snippets" of code into their HTML pages
    JavaScript can put dynamic text into an HTML page - A JavaScript statement like this: document.write("<h1>" + name + "</h1>") can write a variable text into an HTML page .
    JavaScript can react to events - A JavaScript can be set to execute when something happens, like when a page has finished loading or when a user clicks on an HTML element
    JavaScript can read and write HTML elements - A JavaScript can read and change the content of an HTML element.
    JavaScript can be used to validate data - A JavaScript can be used to validate form data before it is submitted to a server. This saves the server from extra processing
    JavaScript can be used to detect the visitor's browser - A JavaScript can be used to detect the visitor's browser, and - depending on the browser - load another page specifically designed for that browser.
    JavaScript can be used to create cookies - A JavaScript can be used to store and retrieve information on the visitor's computer
    Example:
    <html>
    <body>
    <script type="text/javascript">
    document.write("Hello World!");
    </script>
    </body>
    </html>
    The document.write command is a standard JavaScript command for writing output to a page.By entering the document.write command between the <script> and </script> tags, the browser will recognize it as a JavaScript command and execute the code line. In this case the browser will write Hello World! to the page.
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    And Java script can be blocked at the user's side, what was generally a major disadvantage ...
    Therefore, it is not advisable to use any kind of security check ...
    Otherwise, I agree that it is a very powerful language that provides great opportunities ...
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    and google don't recommend javascript for link navigation.. according to google: "Googlebot is great at understanding the structure of HTML links, it can have difficulty finding its way around sites which use JavaScript for navigation. "
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    I also like jquery
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    Java script is a scripting language for putting a validation on client side. This is the object oriented language. JavaScript can put dynamic text into an HTML page,for that no need any software, you can simply write it in text file and directly execute on browser. The syntax of javascript is given as following:
    < script language ="javascript">
    document.write("my first page");

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