function check_username(){	
	new Ajax.Updater('username_msg', '../username.php?id='+$('username').value);
}


function showsubmenu(id){
$('ulsub').getElementsByClassName('item').each(function(e){
e.hide();
});
elements = $('ulsub').getElementsByClassName(id);
elements.each(function(e){
e.show();});
if(elements.length > 0){
$('submenu').show();

set_equal();
} else {
$('submenu').hide();

set_equal();
}

}

function toggle_tab(id){
	$('ulsub').getElementsByClassName('tab').each(function(e){
	$('tab_'+e.id).hide();
	$('tab_'+id).show();

	});
	set_equal();
}

function get_scroll(){

new Ajax.PeriodicalUpdater('banner_top', basedir+'scroller.php', { frequency: 30, decay: 2 ,
onLoad:function(){ 

				},
onSuccess: function() {
                      new Effect.Opacity("banner_top", {duration:4.0, from:0.0, to:1.0});
	             	  }
});
}

function init(){
get_scroll();
set_equal();
if($('spostcode')){
list_school();
}
new Ajax.PeriodicalUpdater('msg_info', basedir+'noframe.php?p=msg_info',{ frequency:20 })
}

function list_school(){
new Ajax.Updater('school_drop', basedir+'scholen.php?postcode='+$('spostcode').value+'&sel='+$('schoolid').value);
}

function sortNumber(a,b){
return a - b
}


function set_equal(){
$('middle').setStyle({height:'100%'});
$('right_mid').setStyle({height:'100%'});
$('sidemenu_middle').setStyle({height:'100%'});

var content_mid = $('content_mid').getHeight();
var extra = 0;
if (navigator.userAgent.indexOf('MSIE') !=-1)
{
	extra = 10;
}
var sidemenu_mid = $('sidemenu_middle').getHeight() -10;
var right_mid = $('right_mid').getHeight() -10;

var arr = new Array(content_mid, sidemenu_mid, right_mid);
arr.sort(sortNumber);
var height = arr.pop();
$('right_mid').setStyle({height:(height+extra)+'px'})
$('middle').setStyle({height:(height-(3*extra)+10)+'px'})
$('sidemenu_middle').setStyle({height:(height+extra)+'px'})
var footer = height+65;
$('footer').setStyle({top:footer+'px'});
$('footer').show();
}


function change_state(id){
new Ajax.Updater('status_'+id, basedir+'noframe.php?p=change_state&id='+id);
}

function delete_img(id){
new Ajax.Request(basedir+'noframe.php?p=delete_pic&id='+id,{
  method: 'get', onSuccess: function(transport) {
  if (transport.responseText == 'true'){
  $('pic_'+id).remove();}}
  }
  );
}

function main_img(id){
new Ajax.Request(basedir+'noframe.php?p=main_pic&id='+id,{
  method: 'get', onComplete:function(){
   window.parent.document.location.reload();
  }});
 
}

function do_search(page){
this.location.href =basedir+'?p='+page+'&n=1&id='+$('searchip').value;
}

function popitup(url,width,height) {
	var randomnumber=Math.floor(Math.random()*11)
	newwindow=window.open(url,randomnumber,'height='+height+',width='+width);
	if (window.focus) {newwindow.focus()}
	return false;
}


function block_user(blockid){
new Ajax.Updater('profile_upd', basedir+'noframe.php?p=block&id='+blockid);
}

function do_progress(){
$('progress').innerHTML ='<h3>Je video wordt nu geupload!</h3><br/><img src="/images/progress.gif" width="54" height="55">';
$('uploadform').hide();
set_equal();
}

function SelectAll(id)
{
document.getElementById(id).focus();
document.getElementById(id).select();
}


Event.observe(window, 'load', init, false);