// the execCommand function (intercepts some commands and replaces them with
// our own implementation)
HTMLArea.prototype.execCommand = function(cmdID, UI, param) {
	var editor = this;	// for nested functions
	this.focusEditor();
	cmdID = cmdID.toLowerCase();
	switch (cmdID) {
	    case "htmlmode" : this.setMode(); break;
	    case "hilitecolor":
		(HTMLArea.is_ie) && (cmdID = "backcolor");
	    case "forecolor":
		this._popupDialog("select_color_" + _editor_lang + ".html", function(color) {
			if (color) { // selection not canceled
				editor._doc.execCommand(cmdID, false, "#" + color);
			}
		}, HTMLArea._colorToRgb(this._doc.queryCommandValue(cmdID)));
		break;
	    case "createlink": this._createLink(); break;
	    case "popupeditor":
		// this object will be passed to the newly opened window
		HTMLArea._object = this;
		if (HTMLArea.is_ie) {
			//if (confirm(HTMLArea.I18N.msg["IE-sucks-full-screen"]))
			{
				window.open(this.popupURL("fullscreen.html"), "ha_fullscreen",
					    "toolbar=no,location=no,directories=no,status=no,menubar=no," +
					    "scrollbars=no,resizable=yes,width=640,height=480");
			}
		} else {
			window.open(this.popupURL("fullscreen.html"), "ha_fullscreen",
				    "toolbar=no,menubar=no,personalbar=no,width=640,height=480," +
				    "scrollbars=no,resizable=yes");
		}
		break;
	    case "undo":
	    case "redo":
		if (this._customUndo)
			this[cmdID]();
		else
			this._doc.execCommand(cmdID, UI, param);
		break;
	    case "inserttable": this._insertTable(); break;
	    case "toggleborders": this._toggleBorders(); break;	// added for toggleborders
	    case "insertimage": this._insertImage(); break;
	    case "insertcharacter": this._insertCharacter(); break;
	    case "insertfile": this._insertFile(); break;
	    case "about"    : this._popupDialog("about.html", null, this); break;
	    case "showhelp" : window.open(this.popupURL("help_" + _editor_lang + ".html"), "ha_help",
				    "toolbar=no,menubar=no,personalbar=no,width=500,height=450," +
				    "scrollbars=yes,resizable=no"); break;

	    case "killword": this._wordClean(); break;

	    case "cut":
	    case "copy":
	    case "paste":
		try {
			if (this.config.killWordOnPaste)
				this._wordClean();
			this._doc.execCommand(cmdID, UI, param);
		} catch (e) {
			if (HTMLArea.is_gecko) {
				if (confirm(HTMLArea.I18N.msg["Moz-Clipboard"])) {
					window.open(this.popupURL("mozilla_prefs_" + _editor_lang + ".html"), "ha_moz_prefs",
				    "toolbar=no,menubar=no,personalbar=no,width=700,height=250," +
				    "scrollbars=no,resizable=no");
				} else {
					//self.focus();
				}
			}
		}
		break;
	    case "lefttoright":
	    case "righttoleft":
		var dir = (cmdID == "righttoleft") ? "rtl" : "ltr";
		var el = this.getParentElement();
		while (el && !HTMLArea.isBlockElement(el))
			el = el.parentNode;
		if (el) {
			if (el.style.direction == dir)
				el.style.direction = "";
			else
				el.style.direction = dir;
		}
		break;
	    default: this._doc.execCommand(cmdID, UI, param);
	}
	this.updateToolbar();
	return false;
};