var current_width = 0;
var lock_resize = -1;
var initialized = 0;
var current_menu = "home";
var preloadimages = new Array();
var scrollTextEffect;
var scrollTextTracker;
var scrollInterval = 100;
var pops = new Array();
var popped = 0;
var post_init_function = 0;

function loadDiv(in_div, in_url, in_section){
	$(in_div).setHTML('<center><br><br><br><br><br><br><br><br><br><br><br><img src="http://www.meneerdewit.com/img/loading.gif"></center>');
	if(in_section){
		menu_set(in_section);
	}
	myajax = new Ajax('http://www.meneerdewit.com/page=site.'+in_url, {evalScripts: true, onComplete: function(){ initDiv(in_div); }, update: in_div});
	myajax.request();
}

function initDiv(in_div){
	//	setup scrolling text functions
}

function scrollTextDown(){
	var s = $('scroll_text');
	if(scrollTextTracker < (s.scrollHeight - s.offsetHeight)){
		scrollTextEffect.custom(scrollTextTracker, scrollTextTracker+1);
		scrollTextTracker += 1;
	}
}

function scrollTextUp(){
	var s = $('scroll_text');
	if(scrollTextTracker > 0){
		scrollTextEffect.custom(scrollTextTracker, scrollTextTracker-1);
		scrollTextTracker -= 1;
	}
}

function initSite(in_value){
	cw = document.body.clientWidth;
	if(lock_resize == 0 || in_value == 1){
		lock_resize = 1;
		if(cw > 1150){
			stretchLeft(156);
			loadDiv('left', 'left_deelnemers/lines=10');
		} else if(cw > 1110){
			stretchLeft(117);
			loadDiv('left', 'left_deelnemers/lines=9');
		} else if(cw > 1070){
			stretchLeft(78);
			loadDiv('left', 'left_deelnemers/lines=8');
		} else if(cw > 1020){
			stretchLeft(39);
			loadDiv('left', 'left_deelnemers/lines=7');
		} else {
			stretchLeft(0);
			loadDiv('left', 'left_deelnemers/lines=6');
		}
		setTimeout("lock_resize = 0;", 1000);
		initialized = 1;
	}
	
	//	set original settings for menus
	var	menus = $S('.menu');
	for(i=0;i<menus.length;i++){
		$(menus[i].id).original_src = $(menus[i].id).src;
	}
	
	if(post_init_function){
		eval(post_init_function);
	}
	
}

function stretchLeft(in_width){
	if(current_width != in_width){
		current_width = in_width;
		$('site').setStyle('width', (962+in_width)+"px");
		$('left').setStyle('width', (235+in_width)+"px");
		$('middle').setStyle('margin-left', (238+in_width)+"px");
		$('right').setStyle('margin-left', (713+in_width)+"px");
	}
}

function popin(id){
	pops = $S('left', '.popimg');
	for(i=0;i<pops.length;i++){
		if($(pops[i].id).getStyle("display") != "none"){
			popout(pops[i].id);
		}
	}
	$(id).setStyle('display', 'block');
	popped = 1;
}

function popout(id){
	$(id).setStyle('display', 'none');
}

function popoff(){
	if(popped == 1){
		pops = $S('left', '.popimg');
		for(i=0;i<pops.length;i++){
			if($(pops[i].id).getStyle("display") != "none"){
				popout(pops[i].id);
			}
		}
		popped = 0;	
	}
}

function menu_click(){
	if($('menu_foldout').getStyle("display") == "none"){
		$('menu_foldout').setStyle("display", "block");
	} else {
		$('menu_foldout').setStyle("display", "none");	
	}
}

function menu_mouseover(){
	if($('menu_foldout').getStyle("display") == "none"){
		$('menu_foldout').setStyle("display", "block");
	}
}

function menu_load(in_section){
	//	reset common settings for menus
	menu_set(in_section);
	
	//	load section content
	if(in_section == "home"){
		loadDiv('middle', 'middle_home');
	}
	if(in_section == "agenda"){
		loadDiv('middle', 'middle_agenda');
	}
	if(in_section == "nieuws"){
		loadDiv('middle', 'middle_nieuws');
	}
	if(in_section == "deelnemers"){
		loadDiv('middle', 'middle_deelnemers');
	}
	
	//	load page content
	if(in_section == "faciliteiten"){
		loadDiv('middle', 'middle_page/id=faciliteiten');
	}
	if(in_section == "verhuur"){
		loadDiv('middle', 'middle_page/id=verhuur');
	}
	if(in_section == "links"){
		loadDiv('middle', 'middle_page/id=links');
	}
	if(in_section == "manifest"){
		loadDiv('middle', 'middle_page/id=manifest');
	}
	if(in_section == "nieuwsbrief"){
		loadDiv('middle', 'middle_nieuwsbrief');
	}
	if(in_section == "contact"){
		loadDiv('middle', 'middle_page/id=contact');
	}
	if(in_section == "colofon"){
		loadDiv('middle', 'middle_page/id=colofon');
	}
}

function menu_set(in_section){
	//	reset common settings for menus
	var	menus = $S('.menu');
	for(i=0;i<menus.length;i++){
		$(menus[i].id).src = $(menus[i].id).original_src;
		$(menus[i].id).src_original = $(menus[i].id).original_src;
	}
	
	//	set common settings for menus
	current_menu = in_section;
	$('menu_'+in_section).src_original = $('menu_'+in_section).getAttribute("eb:src_mouseover");
	$('menu_'+in_section).src = $('menu_'+in_section).getAttribute("eb:src_mouseover");
}

function menu_over(in_section){
	//	void();
}

function menu_out(in_section){
	//	void();
}

function CheckMultiple5(frm, name) {
	for (var i=0; i < frm.length; i++)
	{
		fldObj = frm.elements[i];
		fldId = fldObj.id;
		if (fldId) {
			var fieldnamecheck=fldObj.id.indexOf(name);
			if (fieldnamecheck != -1) {
				if (fldObj.checked) {
					return true;
				}
			}
		}
	}
	return false;
}

function CheckForm5(f) {
	if (f.email.value == "") {
		alert("Vul aub een geldig email adres in");
		f.email.focus();
		return false;
	}
	if (f.format.selectedIndex == -1) {
		alert("Kies het formaat waarin u onze nieuwsbrief wenst te ontvangen");
		f.format.focus();
		return false;
	}	
	return true;
}

function agenda_filter(in_location, in_value){
	var	agendas = $S('.'+in_location);
	if(in_value == false){
		for(i=0;i<agendas.length;i++){
			$(agendas[i]).setStyle('display', 'none');
		}
	} else {
		for(i=0;i<agendas.length;i++){
			$(agendas[i]).setStyle('display', 'inline');
		}
	}
}

function containsDOM (container, containee) {
  var isParent = false;
  do {
    if ((isParent = container == containee))
      break;
    containee = containee.parentNode;
  }
  while (containee != null);
  return isParent;
}

function checkMouseEnter(element, evt) {
  if(evt){
	  if (element.contains && evt.fromElement) {
	    return !element.contains(evt.fromElement);
	  }
	  else if (evt.relatedTarget) {
	    return !containsDOM(element, evt.relatedTarget);
	  }
	}
}

function checkMouseLeave(element, evt) {
	if(evt){
	  if (element.contains && evt.toElement) {
	    return !element.contains(evt.toElement);
	  }
	  else if (evt.relatedTarget) {
	    return !containsDOM(element, evt.relatedTarget);
	  }
  	}
}