Ajax and Ajax Frameworks

I have been a developer for nearly 20 years and a web developer for about 10 years. Over the years, I have considered creating a blog to share the things I have learned (and am learning) about web design and development, but I never seemed to have the time. When I began learning about web development using Ajax and Ajax Frameworks, I decided to take the time to create this blog.

My intention for this blog is to focus primarily on Ajax Frameworks, but since web development requires knowledge of many technologies, I will occasionally write about things such as CSS, Javascript, PHP, MySQL, Flash, etc.

Lately, I have been using JQuery as my primary Ajax tool. Although I have used other Ajax Frameworks in the past (Dojo Toolkit, Yahoo! User Interface Library, Scriptaculous/Prototype), JQuery has thus far been the easiest to learn. In my first few posts I will discuss some of the JQuery Plugins that I have created. Some of these include: a plugin for Google Maps (jquery.imGoogleMaps), Form validation and submission  (jquery.imValidateForm), Page Populater (jquery.imPagePopulate), and a plugin to create lists (jquery.imList).

While I am still learning about some of the other Ajax Frameworks, I hope that what I have learned will be helpful to others. Just remember, “When you can pull the pebbles from my hand…”

CodeIgniter: 500 Internal Server Error

Monday, July 6th, 2009

I just finished a project using CodeIgniter. I ftp’d the files to the host provider’s servers. When I attempted to view the website, I received a ‘500 Internal Server Error’. Viewing the error logs, I found: SoftException in Application.cpp:252: File “/home/arrowcol/public_html/index.php” is writeable by group. I looked at the permissions of the index.php file and found that it was set to 0666, so I changed it to 0755 and the site is now up and running.

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One Response to “CodeIgniter: 500 Internal Server Error”

  • David Mulder Says:


    Thank you so much for the tip (despite first misunderstanding and ending up myself in the server logs :P ). You were absolutely right. Still it wouldn’t be a bad thing if you would make the contrast between the text and the background higher, ’cause with my screen in the evening (low brightness) its nearly impossible to easily read.

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