'clearData()' Example
<html> <body> <button onclick="clipboardData.setData('Text',document.selection.createRange().text);"> Copy </button> <button onclick="myText.value = clipboardData.getData('Text');">Paste</button> <button onclick="clipboardData.clearData('Text');">Clear clipboard</button> <p>This is some sample text</p> <textarea id="myText" style="width:600; height:100"></textarea> </body> </html>