// Include x.js
if ( typeof(xGetElementById) == 'undefined' )
{	
	document.write('<script type="text/javascript" src="/jslib/x.js"></script>');
}

// Include form object
if ( typeof(Form) == 'undefined')
{
	document.write('<script type="text/javascript" src="/jslib/form.js"></script>');
}

function checkForm(f)
{	 
   var oForm      = new Form(); 	 
 	 oForm.setForm(f); 	 
 	 
   var theElement;
   for (var iElement = 1; iElement < f.elements.length; iElement++) {  
     theElement = f.elements[iElement];           
     if (theElement.type == "text")
     {
     	if ((theElement.name != 'h_voorletters2')
     			&& (theElement.name != 'h_voorletters3')
     			&& (theElement.name != 'h_voorletters4')
     			)
     	 {
	       if ( oForm.checkEmpty( theElement.value) )
	       {
	         alert(" - "+theElement.name+" - "); //Veld - is verplicht
	         theElement.focus();
	         theElement.select();
	         return false;
	       }
     	}     	
     }
   }

	 var validEmail = oForm.checkEmail(f.email.value);
   if (f.email && f.email.value != "" && !validEmail)
   {
     alert("")   //Email adres is incorrect!
     f.email.focus();
     return false;
   }
   
      
   return true;
}

function formatVoorletters(oInput)
{
 	var sTemp   = oInput.value.split('');
 	var sResult = "";
 	
  for(i=0; i<=sTemp.length-1; i++)
	{
		if (sTemp[i] != ".")
		{
			sTemp[i] = sTemp[i].toUpperCase();				
    	sResult += sTemp[i]+".";
   	}
   	<!--alert(sTemp);-->
  }
   
  oInput.value = sResult;
}

function controleer_gegevens(f)
{ 
  if (f.email && f.email.length == 0 && isEmailAddr(f.email.value)===false){
  	alert("")
        f.email.focus()
   	return false
   }   
   return true;
} 
 
function isEmailAddr(email)
{ 
  var result = false;
  var theStr = new String(email);
  var index = theStr.indexOf("@");
  if (index > 0) {
    var pindex = theStr.indexOf(".",index);
    if ((pindex > index+1) && (theStr.length > pindex+1))
	result = true;
  }
  return result;
}