Webs Miscellany by George Hernandez

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A miscellany of web tech and cyber life stuff.

Many email viruses can be avoided by not opening any unexpected attachments, especially executables or zipped files.
Any doubtful control on a form should have a help link associated with it. Help links should pop up instead of replacing the current window.
Development Stages of 3 Web Objectives. (I jotted down while Windows World 1999).
- Bussiness Objective: Traffic, Revenue, Profit
- Usage: Presence, Simple Transactions, Personalized Transactions
- Innovations: HTML, ASP & Scripting, Web Services & XML
IE: Put ToolTips on almost any HTML element by setting its TITLE attribute. EG:
```
<p title="Line 1...&#13;& 2.">Put your mouse over me.</p>
```
Put your mouse over me.
IE: This IE bug will crash IE on your system. It is simple to avoid by simply never making a web file like the following:
```
<html><form><input type crash></form></html>
```
Icon for Favorites. When a user adds your site to their favorites list, you can have it added with an icon of your choice. Simply use either of these methods.
- To have the same icon for all pages on your site: Save the icon as "favicon.ico", and place it in the site's root directory.
- To have different icons for different pages on your site: Add this code in the HTML header of your particular pages: <link rel="shortcut icon" href="/DirectoryPath/logo.ico">.

Redirect. Different options to redirect.

HTML. In the HTML header:

<meta http-equiv="refresh" content="0;URL=http://www.google.com/">

JavaScript.

<script language="Javascript" type="text/javascript">
    <!-- 
    //<![CDATA[
    window.location.href="http://www.google.com/"	    
    //]]> 
    -->
    </script>

The following code will delay before redirecting.

<html><head>
    <script language="javascript" type="text/javascript"><!--
    function redirect () { setTimeout("go_now()",10000); }
    function go_now ()   { window.location.href = "http://www.google.com/"; }
    //--></script>
    </head>
    <body onload="redirect()">
    <p>This page will be redirected in 10 seconds</p>
    <p>Hit the 'ESC' key or click <a href="javascript:history.back()">BACK</a> to cancel the redirect.</p>
    </body></html>

The redirecting page with the following code will not show in the client's history of sites visited.

<script language="javascript" type="text/javascript"><!-- 
    location.replace("http://www.google.com");
    --></script>

PHP.

<?php
    header("Location: http://www.google.com/");
    ?>

ASP. The first can redirect to any URL, anywhere. The second can only transfer to the same server but passes along Server variables.
```
Response.Redirect("http://www.google.com/")
```
```
Server.Transfer("sameServer.asp", True)
```

HTTP status codes. Via List of HTTP status codes [W].
- 1xx. Informational
- 2xx. Success.
- 3xx. Redirection.
- 4xx. Client Error. Usually a syntax issue.
  - 403. Forbidden.
  - 404. Not Found. Probably the most common error.
- 5xx. Server Error.

2007-07-23 22:14:46Z