// Dialog v3.0 - Copyright (c) 2003-2004 interactivetools.com, inc.

// This copyright notice MUST stay intact for use (see license.txt).

//

// Portions (c) dynarch.com, 2003-2004

//

// A free WYSIWYG editor replacement for <textarea> fields.

// For full source code and docs, visit http://www.interactivetools.com/

//

// Version 3.0 developed by Mihai Bazon.

//   http://dynarch.com/mishoo

//

// $Id: dialog.js 26 2004-03-31 02:35:21Z Wei Zhuo $



// Though "Dialog" looks like an object, it isn't really an object.  Instead

// it's just namespace for protecting global symbols.



function Dialog(url, action, init) {

	if (typeof init == "undefined") {

		init = window;	// pass this window object by default

	}

	Dialog._geckoOpenModal(url, action, init);

};



Dialog._parentEvent = function(ev) {

	setTimeout( function() { if (Dialog._modal && !Dialog._modal.closed) { Dialog._modal.focus() } }, 50);

	if (Dialog._modal && !Dialog._modal.closed) {

		Dialog._stopEvent(ev);

	}

};





// should be a function, the return handler of the currently opened dialog.

Dialog._return = null;



// constant, the currently opened dialog

Dialog._modal = null;



// the dialog will read it's args from this variable

Dialog._arguments = null;



Dialog._geckoOpenModal = function(url, action, init) {

	//var urlLink = "hadialog"+url.toString();

	var myURL = "hadialog"+url;

	var regObj = /\W/g;

	myURL = myURL.replace(regObj,'_');

	var dlg = window.open(url, myURL,

			      "toolbar=no,menubar=no,personalbar=no,width=10,height=10," +

			      "scrollbars=no,resizable=yes,modal=yes,dependable=yes");

	Dialog._modal = dlg;

	Dialog._arguments = init;



	// capture some window's events

	function capwin(w) {

		Dialog._addEvent(w, "click", Dialog._parentEvent);

		Dialog._addEvent(w, "mousedown", Dialog._parentEvent);

		Dialog._addEvent(w, "focus", Dialog._parentEvent);

	};

	// release the captured events

	function relwin(w) {

		Dialog._removeEvent(w, "click", Dialog._parentEvent);

		Dialog._removeEvent(w, "mousedown", Dialog._parentEvent);

		Dialog._removeEvent(w, "focus", Dialog._parentEvent);

	};

	capwin(window.document);

	// capture other frames

	for (var i = 0; i < window.frames.length; capwin(window.frames[i++].document));

	// make up a function to be called when the Dialog ends.

	Dialog._return = function (val) {

		if (val && action) {

			action(val);

		}

		relwin(window.document);

		// capture other frames

		for (var i = 0; i < window.frames.length; relwin(window.frames[i++].document));

		Dialog._modal = null;

	};

};





// event handling



Dialog._addEvent = function(el, evname, func) {

	if (Dialog.is_ie) {

		el.attachEvent("on" + evname, func);

	} else {		

		el.addEventListener(evname, func, true);

	}

};





Dialog._removeEvent = function(el, evname, func) {

	if (Dialog.is_ie) {

		el.detachEvent("on" + evname, func);

	} else {

		el.removeEventListener(evname, func, true);

	}

};





Dialog._stopEvent = function(ev) {

	if (Dialog.is_ie) {

		ev.cancelBubble = true;

		ev.returnValue = false;

	} else {

		ev.preventDefault();

		ev.stopPropagation();

	}

};



Dialog.agt = navigator.userAgent.toLowerCase();

Dialog.is_ie	   = ((Dialog.agt.indexOf("msie") != -1) && (Dialog.agt.indexOf("opera") == -1));

