December 2006 Archives

2006 Dec 8

HTML Error Codes

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Actually, they are better called response codes. Below is a list of the HTML error codes and its short description

Informational
100="Continue"
101="Switching Protocols"

Successful Client Requests
200 OK
201 Created
202 Accepted
203 Non-Authorative Information
204 No Content
205 Reset Content
206 Partial Content

Client Request Redirected
300 Multiple Choices
301 Moved Permanently
302 Moved Temporarily
303 See Other
304 Not Modified
305 Use Proxy

Client Request Errors
400 Bad Request
401 Authorization Required
402 Payment Required (not used yet)
403 Forbidden
404 Not Found
405 Method Not Allowed
406 Not Acceptable (encoding)
407 Proxy Authentication Required
408 Request Timed Out
409 Conflicting Request
410 Gone
411 Content Length Required
412 Precondition Failed
413 Request Entity Too Long
414 Request URI Too Long
415 Unsupported Media Type

Server Errors
500 Internal Server Error
501 Not Implemented
502 Bad Gateway
503 Service Unavailable
504 Gateway Timeout
505 HTTP Version Not Supported

2006 Dec 8

Tableless form using HTML with CSS

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Making a tableless form is fairly very easy. Like the one shown below:












HTML code:

<form id="testform" name="testform" >
<label >Name:</label>
<input type="text" name="name" /><br />
<label >Email:</label>
<input type="text" name="email" /><br />
<label >Comment:</label>
<textarea name="comments" rows="5" cols="25"></textarea><br />
</form>

Add this to your CSS:

#testform label,input ,textarea{
display: block;
width: 150px;
float: left;
margin-bottom: 5px;
}
#testform label {
text-align: right;
width: 75px;
padding-right: 20px;
}
#testform br {
clear: left;
}

2006 Dec 7

Redirecting 404 errors

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we could redirect our users from a 404 error page not found to any url by editing our .htaccess files. this is usefull to give us more control in handling vairous html error codes. using the ErrorDocument tag and specifying the error code 404 as the page not found error code, (other error code might also be used in the redirect like: 400 - Bad Syntax, 401 - Unauthorized, 402 - Not used, 403 - Forbidden, 404 - Not Found, 500 - Internal Error, 501 - Not Implemented, 502 - Overloaded, 503 - Gateway Timeout).

Redirecting to an error page:

ErrorDocument 404 /404.html
- redirects the user to the 404.html page

using Rewrite to do the redirect:

RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule (.+) http://www.tildemark.com/404page/$1

or

RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^(.+)testing\.html?$ temporary/$1

Display an html page:

ErrorDocument 404 <b>Page Not Found</b><p /><br /><a href="http://www.tildemark.com">Tildemark blogs homepage</a>

2006 Dec 6

transparent images using css with opacity

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Using CSS we could add some uniqueness to our hml pages using transparent images. for example, if we have a global background image ang on top of it there is a gif image only the border or the edges would become transparent.

Specifiying the image opacity allows us to adjust the transparency of our images. here's a sample code. i usually place it under #container tag on my css file.

/* CSS file */
body{
background-image: url(images/background.gif);
}

#container{
filter:alpha (opacity=80); /* MS Internet Explorer */
filter:progid:DXImageTransform.Microsoft.Alpha (style=0, opacity=80) /* MS IE proprietory */
-moz-opacity: 0.8; /* Mozilla v1.6 and below */
opacity: 0.8; /* CSS-3 Standards */
-khtml-opacity:.8 /* Safari */
}
/* CSS file */

the code above makes all the image found on the #container tag lessen its opacity by 80%. not really usefull for me but, you might like it so here goes.

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