Here  is a small JS snippet to copy text in a div to the client machine's  clipboard.

function CopyToClipBoard()

{

var div = document.getElementById('divLink');

div.contentEditable = true; //very important.

var range = document.body.createControlRange();

range.addElement(document.getElementById('divLink'));

range.select();

range.execCommand("Copy");

range.remove(0);

range.select();

alert("The results have been copied to the clipboard.");

div.contentEditable = false; 

return false;

}