Kompx.com or Compmiscellanea.com

JavaScript form submit

Windows : Internet Explorer 4.01+, Firefox 1.0+, Google Chrome, Opera 3.0+, Safari 3.1+, SeaMonkey 1.0+ [ 1 ].

Linux : Firefox 1.0+, Google Chrome / Chromium, Opera 5.0+, SeaMonkey 1.0+ [ 2 ].

Submitting a form using JavaScript. A dropdown list (form + select + multiple options) is processed without any submit button. Example:

HTML / XHTML. Code:

<form action="action.php" method="post">

<select name="page" required="required" onchange="this.form.submit()">

<option value="" selected="selected" disabled="disabled"> --- Select a page --- </option>

<option value="http://www.kompx.com/en/os/linux-1.htm">Linux</option>

<option value="http://www.kompx.com/en/os/windows-1.htm">Windows</option>

<option value="http://www.kompx.com/en/os/dos-1.htm">DOS</option>

</select>

<noscript><input type="submit" value="Submit" /></noscript>

</form>

When an option has been chosen from the dropdown list, the form's state is changed. So the onchange event occurs and JavaScript code in onchange is executed: the process of the form submission in started by the script, not by clicking submit button which is absent.

Some server-side script [ 3 ] is meant then to handle the form action. The script is supposed to get what the form sends and have it processed. A PHP script in action.php is used in the example:

<?php

if (isset($_POST["page"])) {

    header("Location: $_POST[page]");

    exit;

} else {

    echo "No options selected";

}

$_POST is an array of variables passed to the current script via the HTTP POST method. So $_POST[page] contains the content of the value attribute in a select option. That is, a URL. It is passed from form to PHP script and the script redirects browser to the URL / page selected.

HTML code of <noscript><input type="submit" value="Submit" /></noscript> is present in the form as a fallback in case JavaScript happens to be turned off. Then there is a submit button to appear and the form is usable anyway.


[ 1 ]

As well as Netscape 3.04+, Mozilla 0.6+.

[ 2 ]

As well as Netscape 3.04+, Mozilla 0.6+.

[ 3 ]

If a CMS is used, form action may be handled by some of its inbuilt means.


Aliosque subditos et thema

 

Bold numbers in ordered lists

 

Numbers in an ordered list made bold without having any extra HTML tags added: List item List item List item HTML / XHTML. Code: <ol> <li>List item</li> <li>List item</li> <li>List item</li> </ol> CSS. Code: ol {counter-reset: item;} ol li {display: block;} ol li:before {content: counter(item) ". "; counter-increment: item; font-weight: bold;} There is no obvious way at the moment to style only numbers marking ordered list items. A workaround is to use a CSS counter instead of the default automatic numbering of ordered lists. The way a CSS counter is started allows to style specifically the marking numbers. Like in the example, where numbers in an ordered list are styled bold. This method also lets to use other characters after the numbers - besides dots. Like a parenthesis / round bracket instead of a dot. Or handling of space between the number, punctuation mark and the content proper of list item. [ 1 ] As well as Netscape 9.0+. [ 2 ] As well as Netscape 9.0+.

Lightweight web browsers for Linux

 

Netsurf : Hv3 : Dillo : Links2 Nowadays the real lightweight web browsers are those without JavaScript and Flash support or with a very limited one. Because a web browser even with the lightest interface becomes heavyweight working with the modern internet crammed with scripts and multimedia. These browsers are not numerous and some of them are moving towards getting JavaScript support - i.e. towards dropping out of the "Lightweight web browsers" category. Lightweight web browsers may be more advanced - with CSS support. Or less - no CSS support or close to that. Netsurf - / home page / Currently the most advanced lightweight web browser for Linux. CSS support is quite solid. Good support of HTML. Feeble support for JavaScript - may be disabled by default. There is a version of Netsurf for *nix systems that can be run without X, using framebuffer of graphic adapter. Created initially for RISC OS and only later ported to Linux. There are also versions for other *nix systems, for AmigaOS, AmigaOS 4, Atari OS, BeOS/Haiku, Mac OS X, MorphOS. ( More about Netsurf features ) NetSurf 3.0 on PuppyLinux 5.2.8: netsurf-browser.org NetSurf 3.0 on PuppyLinux 5.2.8: w3schools.com/browsers/browsers_stats.asp NetSurf 3.0 on PuppyLinux 5.2.8: en.wikipedia.org/wiki/Netsurf NetSurf 3.0 on PuppyLinux 5.2.8: ebay.com NetSurf 3.0 on PuppyLinux 5.2.8: kompx.com/en/web-browsers-for-dos.htm NetSurf 3.0 on PuppyLinux 5.2.8: twitter.com Hv3 - / home page / Less advanced lightweight web browser for Linux, but still having considerable CSS support. Weak JavaScript / ECMAScript support. Quite good HTML support.