function confirmDelete(delUrl) {
  if (confirm("Are you sure you want to delete")) {
    document.location = delUrl;
  }
}

function echeck(str) {

		var at="@"
		var dot="."
		var lat=str.indexOf(at)
		var lstr=str.length
		var ldot=str.indexOf(dot)
		if (str.indexOf(at)==-1){
		   alert("Ongeldig e-mail adres")
		   return false
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		   alert("Ongeldig e-mail adres!")
		   return false
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		    alert("Ongeldig e-mail adres!")
		    return false
		}

		 if (str.indexOf(at,(lat+1))!=-1){
		    alert("Ongeldig e-mail adres!")
		    return false
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		    alert("Ongeldig e-mail adres!")
		    return false
		 }

		 if (str.indexOf(dot,(lat+2))==-1){
		    alert("Ongeldig e-mail adres!")
		    return false
		 }
		
		 if (str.indexOf(" ")!=-1){
		    alert("Ongeldig e-mail adres!")
		    return false
		 }

 		 return true					
	}
	
function checkform ( form )
{
  // see http://www.thesitewizard.com/archive/validation.shtml
  // for an explanation of this script and how to use it on your
  // own website

  // ** START **
  var emailID=document.reageren.email

  if (form.naam.value == "") {
    alert( "Je hebt je naam niet ingevuld." );
    form.naam.focus();
    return false ;
  }
  if (form.email.value == "") {
    alert( "Je hebt je e-mail adres niet ingevuld." );
    form.email.focus();
    return false ;
  }
  if (echeck(emailID.value)==false){
	emailID.value=""
	emailID.focus()
	return false
  }
  if (form.reactie.value == "") {
    alert( "Je hebt geen reactie ingevuld." );
    form.reactie.focus();
    return false ;
  }
  // ** END **
  return true ;
}

function checkzoekform ( form )
{
  // see http://www.thesitewizard.com/archive/validation.shtml
  // for an explanation of this script and how to use it on your
  // own website

  // ** START **

  if (form.zoek.value == "") {
    alert( "Geen zoekopdracht ingevuld." );
    form.zoek.focus();
    return false ;
  }
  // ** END **
  return true ;
}