Google Calendar link creator

Use this form to make a new event in your Google Calendar or to get a URL you can give people (e.g. in on your blog, like this or an email). People can then add the event to their calendars. Google have provided this page of how to do this manually. They also have some buttons you can put on your website. I've just made it into a form. I'm sorry about the confusing dates. They look really confusing but once you understand them they're actually quite easy. I could fix it with JavaScript but can't be bothered.

Instructions: Fill out the form. Click Go! Copy the URL (in the address bar of your browser) and either email it to a friend or put a link to it on your website or blog.

Event Title:
Date / Time:
Use YearMonthDate/YearMonthDate (e.g. 20060419/20060419) for all day events or YearMonthDateTHoursMinutesSecondsZ/YearMonthDateTHoursMinutesSecondsZ for set times (e.g. 20060419T180000Z/20060419T190000Z). Times are in UTC so -1 hour if you want BST. The / seperates the start and end.
Details:
Location:
Busy? (true/false)