JavaScript get clipboard data on paste event (Cross browser)

Question

How can a web application detect a paste event and retrieve the data to be pasted?

I would like to remove HTML content before the text is pasted into a rich text edi

Answer 1

This worked for me :

function onPasteMe(currentData, maxLen) {
    // validate max length of pasted text
    var totalCharacterCount = window.clipboardData.getData('Text').length;
}