function init() {
  startList();
  setHeight();
  externalLinks();
}

function showEducations(s) {
  s = (document.getElementById(s+'_table'));
  $(s).toggle('slow');
}

function togglehelp() {
  $('.helplist').toggle('slow');
  $('.showwindow').toggle('fast');
  $('.hidewindow').toggle('fast');
}

function startList() {
  navRoot = document.getElementById("menu_14");
  for (i=0; i<navRoot.childNodes.length; i++) {
    node = navRoot.childNodes[i];
      if (node.nodeName=="LI") {
        node.onmouseover=function() {
        $(this).addClass("over");
      } 
      node.onmouseout=function() {
        $(this).removeClass("over");
      }
    }
  }
}

function setHeight() {
  var cHeight = document.getElementById('container').offsetHeight;
  var bHeight = document.documentElement.scrollHeight;
  if (cHeight < bHeight) {
    document.getElementById('container').style.height = bHeight +'px';
    document.documentElement.style.height = bHeight +'px';
  }
}

function createCookie(name,value,days) {
  alert('set cookie');
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else var expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}

function eraseCookie(name) {
	createCookie(name,"",-1);
}

function externalLinks() {
	if (!document.getElementsByTagName) return;
	var anchors = document.getElementsByTagName("a");
	for (var i=0; i<anchors.length; i++) {
		var anchor = anchors[i];
		if (anchor.getAttribute("href") 
		&& anchor.getAttribute("rel") == "external")
		anchor.target = "_blank";
	}
}

function getsubselect(s) {
  location.href = '?id=78&selectedoption='+s
}

function submitnascholingen() {
  var instituut = document.getElementById('instituut').value;
  var onderwerp = document.getElementById('onderwerp').value;
  var datum = document.getElementById('datum').value;
  var dagdelen = document.getElementById('dagdelen').value;
  var nascholingstype = document.getElementById('nascholingstype').value;
  
  var error = '';
  if (instituut == '') {
	    error += '<p>Er is geen instituut gekozen.</p>'+"\n"
  }
  
  if (onderwerp == '') {
	    error += '<p>Er is geen onderwerp gekozen.</p>'+"\n"
  }
  
  if(datum == '') {
    error += '<p>S.v.p. datum invullen.</p>'+"\n"    
  }
  
  if(dagdelen == '') {
    error += '<p>S.v.p. dagdelen invullen.</p>'+"\n"
  }
  
  if(nascholingstype == '') {
    error += '<p>S.v.p. nascholingstype invullen.</p>'+"\n"
  }  

  for (i = 1; i <= dateCounter; i++) {
    //alert($('#datum'+i).val());
    if ($('#datum'+i).val() == '') {
      error += '<p>Datum'+(i+1)+' is leeg</p>';
    }
    if ($('#dagdelen'+i).val() == '') {
      error += '<p>Dagdelen'+(i+1)+' is leeg</p>';
    }
  }
  if (error != '') {
    $('#error').html(error);
    $('#error').show('slow');
  } else {
    //alert('submitting form');
    $('#nascholingenform').submit();
  }
  setHeight();
}

window.onload = init;