JavaScript Ungolfed I might come back and golf it later. Got help from SitePoint
HTML:
<input style="display: none;" id="Empty" value=""> <input id="clipclear" type="button" value="Clear The Clipboard"> JS:
function clearclip(){ empty=document.getElementById("Empty"); empty.style.display="block"; empty.select(); document.execCommand('copy'); empty.style.display="none"; } document.getElementById("clipclear").addEventListener("click", clearclip, false);