var clipbrd = new Object();
if (navigator.appName.indexOf("Microsoft") != -1) {
  clipbrd.copyText = function(txt) { clipboardData.setData("Text", txt); }
} else {
  document.write('<embed id="clipbrd_id" src="swf/clipbrd.swf" scale="noscale" width="1" height="1" type="application/x-shockwave-flash" pluginspage="http://www.macromedia.com/go/getflashplayer" >');
  clipbrd = document["clipbrd_id"];
}

function paste(target){
  clipbrd.copyText(target.value);
  target.focus();
  target.select();
}