Mine

//Javascript 

var flashEmb = '<embed src="_clipboard.swf" width="0" height="0" type="application/x-shockwave-flash></embed>';

$('#copPost').mouseup(function(){

	bt.append(flashEmb);
	
	savePost();

});

//Actionscript in the flash file

function savePost(){
    System.setClipboard(clipboard);
} 

ExternalInterface.call("savePost");