Auto Copy selected text

How to make when someone selects something in the body of the page to put this text in the clipboard (no html tags, no other text, just the selected)?:)

Here's a link to an example:
http://www.dynamicdrive.com/dynamicindex11/copytext.htm

Most browsers won't support this though. We don't want you touching our clipboards. If I want to copy, I will press ctrl+c. :)

I will use this only under IE 6.0, this is the only browser that my plug-in supports...

Ok.... it works... 10x a lot man, ammm just a few more things... How can I make this part of the script:
function copyit() {
if (bBool) {
tempstore=copiedtext
document.execCommand("Copy")
copiedtext=window.clipboardData.getData("Text");
bBool=false;
}
}
unselect the text after the text was copied,