A quick cross-browser jQuery plugin to select the contents of a node.

jquery.selection.js

jQuery.fn.selectAll = function() {
  return this.each(function() {
    if (document.body.createTextRange) { // MSIE
      var r = document.body.createTextRange();
      r.moveToElementText(this);
      r.select();
    } else if (window.getSelection) { // W3C
      var r = document.createRange();
      r.selectNodeContents(this);
      
      var s = window.getSelection();
      s.removeAllRanges();
      s.addRange(r);
    }
  });
};