2nd August 2007
My PC is very poorly at the moment and Windows XP re-installation is the prescribed course of action. However, I have getting errors reporting missing or damaged HAL.DLL at the first reboot of the system during installation. Because I thought that there might be hard disk confusion, I unplugged all but the Windows boot drive. That only gave me an error about hard drives not being set up properly. Thankfully, a quick outing on Google turned up a few ideas. However, I should really have started with Microsoft, since they have an article on the problem. About.com has also got something to offer on the subject and seems to be a good resource on installing XP to boot: I had forgotten how to do a repair installation and couldn't find the place in the installation menus. In any event, a complete refresh should be a good thing in the long run, even if it will be a very disruptive process. While I did consider moving to Vista at that point, bringing XP back online seemed the quickest route to getting things back together again. Strangely, I feel like a fish out of water right now, but that'll soon change...
Update: It was, in fact, my boot.ini that was causing this and replacement of the existing contents with defaults resolved the problem...
22nd June 2007
Having been exposed to an application at work that uses a lot of JavaScript, I fully appreciate what some mean when they discuss IE6's inefficient handling of JavaScript. After seeing a web page taking an age to reload and your CPU taking a hammering because of JavaScript processing, the penny does tend to drop...
Needless to say, this very much impacts the world of AJAX-driven web applications with their heavy dependence on client-side JavaScript. While IE7 does come to the rescue, there remain plenty of IE6 users still out there, and this is reflected in website statistics. This demonstrates a certain level of inertia in the browser market that not only afflicts the uptake of IE7 but also the likes of Mozilla, Opera and Safari. It also means that anyone developing AJAX applications very much needs to continue testing in IE6, especially if the product of their labours is for wider public use.
An example of such an application is Zimbra, an open-source web application for messaging and collaboration, and the people behind it have generously shared the results of their browser performance benchmarking. They did comparisons of IE6 vs. IE7 and Firefox 2 vs. IE7. IE6 easily came out as the worst of these, while Firefox 2 was the best.
The next question to be asked could centre around the type of code that is processed inefficiently by IE6. While I wouldn't be at all surprised if a list emerged, here's one: using Microsoft's proprietary innerHTML object to update the DOM for a web page format. Having a quick trawl on Google, this came up for mention as a cause of memory leaks. It is also a Microsoft innovation that never got taken up by those overseeing web standards, hardly a surprise since a spot of DOM scripting achieves the same end. It may be faster to code than any alternatives, and it does have some support from other browsers, but it does seem to have got a bad name, so it should be avoided if possible. That said, it would be interesting to see a performance comparison between innerHTML and DOM methods in IE6.
6th June 2007
Last night, I tried starting up Oracle's SQL Developer so that I could add a listing of my hillwalking blog posts to my website's site map with a spot of PHP scripting. However, all that I got was something like that which you see below:
I must confess that this one threw me. The solution, though challenging to find (they often are, even with the abilities of Google) was to use a batch file called sqldeveloper.bat that you can find in the [installation directory]\sqldeveloper\bin directory. It does start the thing when all else seems to fail and got me up and running again. I did get that blog post listing added to the site map after all; Having more visibility of the MySQL tables was a definite plus point.
25th May 2007
Furthering my excursions into things related to Google, I have been giving Google Analytics a whirl for my hillwalking and photo gallery website. Aside from the fact that it is updated once a day, it could have enabled me to eject WordPress plug-ins like Popularity Contest and FireStats getting the chop. As it happens, I also have a Google Analytics plugin installed, but a little editing of the blog template that I have developed would get rid of that too.
That’s enough about WordPress plug-ins; let’s return to Google Analytics. It has all the usual stuff: who’s visiting, from where are they coming, what are they using to see your site, etc. In addition, it captures if they are coming back, how long they are staying on the site and how deep they are going. Bounce rate is another term that features heavily: it is when a user only goes to one page and then leaves. With a blog, this unfortunately seems to come out as a high figure and that is ironic given that the blog was meant to promote the online photo gallery; it has very much taken on a life all of its own. There’s more to the information from Google Analytics, and it’s all useful stuff, of which I plan to make good use to improve how my site works.
22nd April 2007
Going through the stats for my other blog, I noticed some activity from Google Reader and decided to investigate. What I discovered was a very capable feed reader, much better than Technorati's equivalent. The interface feels a little like an email client, with a different entry in the sidebar for each feed. It also gives you full text and pictures for each blog article that it picks up, though it messes with my hillwalking blog for some reason... As a feed aggregator, it performs very well and makes my blog surveying a lot more effortless. I know that Outlook 2007 has aggregation functionality too, but the portability of Google's little online offering makes it worth taking further, especially as you wouldn't need to pay for it anyway.
Update: Google Reader also allows you to share items from your feeds.