html_editor.js

$(function() {
  WysiHat.Commands.promptLinkSelection = (function() {
    if (this.linkSelected()) {
      if (confirm("Remove link?"))
        this.unlinkSelection();
    } else {
      var value = prompt("Enter a URL", "http://www.google.com/");
      if (value)
        this.linkSelection(value);
    }
  });

  WysiHat.Toolbar.ButtonSets.Snap = WysiHat.Toolbar.ButtonSets.Standard.concat({
    label: "Link",
    cssClass: "toolbar_button",
    handler: function(e) { return e.promptLinkSelection(); }
  });

  var snap_editor = (function (textarea) {
    var textarea = $(textarea).wysihat({buttons: WysiHat.Toolbar.ButtonSets.Snap}),
        editor   = $("#" + textarea.attr('id') + '_editor');

    editor.on("blur keyup paste", function (evt) {
      textarea.val($(this).html());
    });
    return editor;
  });

  $(document).ready(function () {
    window.editor = snap_editor($("#content"));
  });
});