How to make a BASIC loading bar

Does anyone here think that could explain to me step by step how to create a basic loading bar!

I just wanted the loading bar… whats it out of (e.g 23% out of 130Kb) and how to make the Percantage go up and up to 100% and then it loads…

Thanks heaps guyz…
Jakatta…

go to the Best of Kirupa forum and look at the post titled “Preloaders Re-re-revisted”