Here are diverse tools, which I originally have made for myself, but which might be useful for others too. Similar tools exist in the web elsewhere, but I have made these in my own way.
|Coordinates conversion||Converts latitude / longitude coordinates between three commonly used notations: 1) degrees, minutes & seconds (DMS), 2) decimal degrees, 3) integer degrees and decimal minutes.|
|Distance calculation||Calculates of the distance between 2 locations with known latitude/longitude coordinates|
|Colour definition tool||This colour tool facilitates the task to define web page element colours, which fit to each other. It also helps to find a text colour, which is well distinguishable with a certain background colour.|
|Browser information||Shows information of your browser and operation system|
|IP address to country||This routine gives the country name together with the 2 and 3 character country codes defined in ISO 3166-1 for a given IP (IPV4) address.|
|Day of the week for a date||Ever wondered which day of week you were born or which day of week will the first of January two years from now be? This is a tool to show it to you.|
|Days from or to a given date||The scipt counts days from today to a past day or to a future day|