Box-plot downloadable Excel template

Due to quite a few requests I have completed a template for Excel 2007 to quickly allow the user to create a nice looking box plot. The template can be downloaded and used right away, by simply pasting your values into the worksheet and everything else will be done for you.

Only edit cells with green text to avoid breaking any formulas and functionality.

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Finding links to specific adress using xpath

Xpath is apowerful method available in php to select specific elemts in the DOM structure of any xml document, and also html document. The code below can be used for example to check for back links, in a robust way. The code below allows for back links to any page or subpage on your domain, but can easily be changed to be more discriminating.
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Map and sparklines combo

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Swine flue cases in Sweden 2009 (click for larger image)

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Is AdSense relying on URL for determining content?

Just a quick note on an interesting test I have done on AdSense content targeting. Simply put, I uploaded a number of copies of a html document with some text about DVD-players (in Swedish), altering only the

and the file name of the documents. A 250 x 250 AdSense unit were also included.

The results are interesting to say the least. From this simple test it seems that in this particular instance AdSense relies entirely on the filename / URL alone to determine content targeting. If the file is called world_of_warcraft_guide.htm, then ads about World or Warcraft would show, regardless of page title and page content (see images below).

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Method to securely introduce unmasked passwords

Masked passwords pose a significant useability issue which can be avoided. Masked passwords often lead to user frustration and possibly encourage users to chose simple passwords that are easy to enter without making mistakes.

Further, the security benefits from masked passwords are likely minimal for most users and applications. However, there are situations and applications that legitimately benefits from masked password fields, and to cover all bases that best solution might be to enable the user to decide wether masking is warranted or not.

This can be achieved with a simple javascript toggle function:

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