// JavaScript Document
<!--
function validateOnSubmit() {
    var elem;
    var errs=0;
    if (!validateTelnr  (document.forms.demo.telnr, 'inf_telnr', true)) errs += 1; 
    if (!validateAge    (document.forms.demo.age,   'inf_age',  false)) errs += 1; 
    if (!validateEmail  (document.forms.demo.email, 'inf_email', true)) errs += 1; 
    if (!validatePresent(document.forms.demo.from,  'inf_from'))        errs += 1; 

    if (errs>1)  alert('There are fields which need correction before sending');
    if (errs==1) alert('There is a field which needs correction before sending');

    return (errs==0);
  };

function MM_reloadPage(init) {  //reloads the window if Nav4 resized
  if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
    document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
  else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}
MM_reloadPage(true);

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}
//-->


//JQuery Navigation menu
//var onState = false;
$(document).ready(function(){
	$('#teacherNav').hide();
	$(".subNav").hover(function(){
		$(this).find('img').attr('src', 'images/buttons/hteachers.jpg');
		$('#teacherNav').show();
	},function() {
		$(this).find('img').attr('src', 'images/buttons/teachers.jpg');
		$('#teacherNav').hide();
	});
	
	//$("#teacherNav").hover(function(){
	//},function() { 
	//	$('#teacherNav').hide();
	//	$(".subNav").attr('src', 'images/buttons/teachers.jpg');
	//});
	
	$("div.navItem").hover(function(){ 
		$(this).css({ backgroundImage: "url(images/buttons/hnav_bg.jpg)" });
	},function() { 
		$(this).css({ backgroundImage: "url(images/buttons/nav_bg.jpg)" });
	});
	
	$("div.navItem").click(function(){ 
		goToPage = $(this).attr('alt');
		window.location.href= goToPage;
	});

});