Recommended Free Software

There is a growing collection of free, well written software out there and this is a list of the applications I use. Many of them can be run standalone so are perfect for carrying on a USB stick.

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Set The Visibility Of HTML Items By ID

The following JavaScript function allows you to set the visibility of an HTML element to be visible or invisible by the value of its ID attribute. It also allow you to toggle the current visibility.

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Set The Visibility Of HTML Items By Name

The following JavaScript function allows you to set the visibility of an HTML element to be visible or invisible based on its "name" attribute. It also allow you to toggle the current visibility.

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Yes No Checkboxes With Automatic Uncheck

The following article explains how to create sets of Yes No checkboxes that are mutually exclusive. That is when you check the Yes box the corresponding No box is unchecked.

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Read And Write Text Files Using VBScript

This example code shows how you can use VBScript to read and write standard text files. It can be used for reading lines from one file, processing them and then writing them back to another file.

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Check, Uncheck Checkboxes By Name

Using the name attribute the function below can be used to either select all, select none or toggle a number of checkboxes using either buttons or text links.

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APEX Delete Confirmation Dialog Box

When you delete records from a record set in Oracle Application Express using a Delete button it is best to give the user a chance to cancel. This can be easily achieved using a JavaScript popup box.

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SQL Developer Worksheet And Ampersands

If you attempt to run SQL queries in a SQL worksheet and that query includes ampersands then SQL Developer will prompt you for bind variable values. Here is the solution.

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APEX URL Construction And Parameters

The Oracle Application Express URL contains a number of parameters. These parameters are documented but the summary below is quick guide to get you started.

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Get Min-Height Property To Work In IE

The CSS standard allows you to specify a minimum height of an element. This works fine in proper browsers such as Firefox. In Internet Explorer 6 it doesn't work properly.

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