var menuId = 0;
var oldIE = false;
var emailRegExp = /^[A-Z0-9\._\-]+@([A-Z0-9\.\-]+\.)+[A-Z]{2,4}$/i;
var message = false;
window.onload = function()
{
  if(navigator.userAgent.indexOf("MSIE") > 0 && navigator.userAgent.indexOf("Opera") < 0)
  {
    if(theMenu = document.getElementById("menu"))
    {
      var w=140;if(navigator.userAgent.indexOf("MSIE 6") < 0){lis = theMenu.getElementsByTagName("a");for(i=0;i<lis.length;i++){if(lis[i].className!="tmp"){lis[i].style.width=w+"px";}}}
      lis = theMenu.getElementsByTagName("li");
      for(i=0;i<lis.length;i++)
      {
        lis[i].onmouseover = function()
        {
          this.className = "over";
        }
        lis[i].onmouseout = function()
        {
          this.className = this.className == "over" ? "" : "sel";
        }
      }
    }

    if(theMenu = document.getElementById("submenu"))
    {
      var w=140;if(navigator.userAgent.indexOf("MSIE 6") < 0){lis = theMenu.getElementsByTagName("a");for(i=0;i<lis.length;i++){if(lis[i].className!="tmp"){lis[i].style.width=w+"px";}}}
      lis = theMenu.getElementsByTagName("li");
      for(i=0;i<lis.length;i++)
      {
        lis[i].onmouseover = function()
        {
          this.className = "over";
        }
        lis[i].onmouseout = function()
        {
          this.className = this.className == "over" ? "" : "sel";
        }
      }
    }
  }
}
function show(obj)
{
  items = obj.getElementsByTagName("ul");
  if(items.length > 0)
  {
    items[0].style.display = "block";
  }
}
function hide(obj)
{
  obj.style.backgroundColor = "";
  items = obj.getElementsByTagName("ul");
  if(items.length > 0)
  {
     items[0].style.display = "none";
  }
}
function showHide(what, how)
{
  obj = document.getElementById(what);
  obj.style.display = how ? "block" : "none";
}
function openWindow(url)
{
  myWindow = window.open(url, url, 'width=800,height=600,resizable=yes');
  myWindow.focus();
  return false;
}
function setSampleText(id, sampletext) {
    if (field = document.getElementById(id)) {
        if (field.value != '') {
            return;
        }
        field.value = sampletext;
        field.className = 'sampletext';
    }
}

function clearSampleText(sender) {
    if (sender.className == 'sampletext') {
        sender.className = '';
        sender.value = '';
    }
}
function validateTellafriend() {
	var email = document.getElementById('tellafriendemail').value;
    if ((email.length < 6) || (!emailRegExp.test(email))) {
    	alert('U heeft geen of een ongeldig email van uw collega ingevuld');
    	return false;
    }
    return true;
}
function showAlerts() {
	if (message) {
		alert(message);
	}
}