/**
 * Include script for javascript application layer.
 * 
 * @author R.J.T. de Vries <rdevries@thirdwave.nl>
 * @version 1.00, 01/18/2008
 * @access public
 */

//------------------------------------------------------------------------------
// PHASE I: INCLUDE ALL NECESSARY JAVASCRIPT FILES.
//------------------------------------------------------------------------------
document.write("<script src='/cms/jscripts/sarissa/sarissa.js'></script>");
document.write("<script src='/cms/jscripts/xmlhttp/XMLHttp.js'></script>");
document.write("<script src='/cms/jscripts/xmlhttp/XMLProcessor.js'></script>");
document.write("<script src='/cms/jscripts/xmlhttp/Data.js'></script>");
document.write("<script src='/cms/jscripts/cms.event.js'></script>");
document.write("<script src='/cms/jscripts/cms.cookie.js'></script>");
document.write("<script src='/cms/jscripts/cms.functions.js'></script>");
document.write("<script src='/inc/jscripts/dateinput.js'></script>");
document.write("<script src='/inc/jscripts/ddMenus.js'></script>");
document.write("<script src='/inc/jscripts/Photoalbum.js'></script>");

//------------------------------------------------------------------------------
// PHASE II: INITIALIZATION FUNCTION, CALLED ON DOCUMENT LOAD EVENT
//------------------------------------------------------------------------------

/**
 * Instance of ddMenus object.
 * @var object ddmenus
 * @access global
 */
var ddmenus;

/**
 * Instance of Photoalbum object.
 * @var object photoalbum
 * @access global
 */
var photoalbum = null;

/**
 * Instance of TabManager object.
 * @var object tabManager
 * @access global
 */
var tabManager = null;

/**
 * Dateinput object.
 * @var object dateinput
 * @access global
 */
var dateinput = null;

/**
 * Initialization function.
 *
 * @param		boolean		refresh		should the nav-list be refreshed? default to true.
 * @return 	void
 * @access	public
 */
function init() {
	var selects, i, extlinks;
	
	set_select_values();
	
	ddmenus = new ddMenus;
	if ( !ddmenus.init() ) {
		alert('Dropdown menus kunnen niet worden geactiveerd');
	}
	
	photoalbum = new Photoalbum;
	photoalbum.init();
	
	extlinks = document.getElementsByAttribute('className', 'external', 'a');
	for ( i = 0; i < extlinks.length; i++ ) {
		extlinks[i].setAttribute('target', '_blank');
	}
	
	dateinput = new Dateinput;
	dateinput.init();
} // init()

//------------------------------------------------------------------------------
// PHASE III: Some site specific functions and setting of the onload handler.
//------------------------------------------------------------------------------

window.onload = init;

/**
 * Jump to the url that is given in the value of the selected option in the
 * event source.
 * 
 * @param		object		[e]		event object for compliant browsers.
 * @return	boolean					true on success, false on failure.
 * @access	global
 */
function jump(e) {
	var eventSrc, url;
	
	if ( !e ) e = window.event;
	if ( !(eventSrc = getEventSrc(e)) ) return false;
	if ( eventSrc.tagName.toLowerCase() != 'select' ) return false;
	if ( !(url = eventSrc.options[eventSrc.selectedIndex].value) ) return false;
	document.location = url;
	return true;
} // jump()

/**
 * Remove the default text from inputs to which this event was attached.
 * 
 * @param		object	[e]	event object for Mozilla based browsers.
 * @return	void
 */
function removeDefTxt(e) {
	if ( !e ) e = window.event;
	var eventSrc = getEventSrc(e);
	if ( eventSrc.getAttribute('defaultText') == eventSrc.value ) {
		eventSrc.value = '';
		if ( eventSrc.getAttribute('ispass') == 'yes' ) {
			eventSrc = changeInputType(eventSrc, 'password');
		}
		eventSrc.className = eventSrc.className.replace(' deftxt', '');
	}
	setTimeout( function() { eventSrc.focus(); }, 100);
} // removeDefTxt()

/**
 * Restore the default value for inputs to which this event was attached.
 * 
 * @param		object	[e]	event object for Mozilla based browsers.
 * @return	void
 */
function restoreDefTxt(e) {
	if ( !e ) e = window.event;
	var eventSrc = getEventSrc(e);
	if ( eventSrc.value == '' ) {
		eventSrc.value = eventSrc.getAttribute('defaultText');
		if ( eventSrc.getAttribute('ispass') == 'yes' ) {
			changeInputType(eventSrc, 'text');
		}
		eventSrc.className += ' deftxt';
	}
} // restoreDefTxt()

/**
 * Change the type of given input in a way that even Internet Explorer can
 * understand.
 * 
 * @param		object		inp				input element.
 * @param		string		newtype		new type to set.
 * @return	void
 */
function changeInputType(inp, newtype) {
	var str, input;
	try {
		inp.setAttribute('type', newtype);
	} catch(e) {
		str = "<input type='" + newtype + "' name='" + inp.name + "' value='" + inp.value + "' class='" + inp.className + "'>";
		input = document.createElement(str);
		input.setAttribute('ispass', 'yes');
		input.setAttribute('defaultText', inp.getAttribute('defaultText'));
		inp.parentNode.replaceChild(input, inp);
		addEvent(input, 'focus', removeDefTxt);
		addEvent(input, 'blur', restoreDefTxt);
		inp = input;
	}
	return inp;
} // changeInputType()