function checkData ()
	{
	var validemail=true;
	if (document.pForm.naam.value == "")
		{
		if (document.pForm.language.value == "NL")
		{
		 alert("Naam a.u.b.");
		}
		else if (document.pForm.language.value == "EN")
		{ 
		 alert("Name please...");
		 }
		 else if (document.pForm.language.value == "DU")
		{ 
		 alert("Name bitte...");
		 }
		  else if (document.pForm.language.value == "FR")
		{ 
		 alert("Nom svp...");
		 }
		 document.pForm.naam.focus();
		 return false;
		}
if (document.pForm.email.value == ""
	|| document.pForm.email.value == null)
		{
		 if (document.pForm.language.value == "NL")
		{
		 alert("E-mail a.u.b.");
		}
		else if (document.pForm.language.value == "EN")
		{ 
		 alert("E-mail please...");
		 }
		 else if (document.pForm.language.value == "DU")
		{ 
		 alert("E-mail bitte...");
		 }
		  else if (document.pForm.language.value == "FR")
		{ 
		 alert("E-mail svp...");
		 }
		 document.pForm.email.focus();
		 return false;
		}
	validemail=echeck(document.pForm.email.value)	
	if (validemail == false)
		{
		 alert("Invalid Email address");
		 document.pForm.email.focus();
		 return false;
		}
	
	
if (document.pForm.vraag.value == "")
		{
		if (document.pForm.language.value == "NL")
		{
		 alert("Uw vraag/opmerking a.u.b.");
		}
		else if (document.pForm.language.value == "EN")
		{ 
		 alert("Your Question/Remark please...");
		 }
		 else if (document.pForm.language.value == "DU")
		{ 
		 alert("Ihre Frage(n) / Bemerkung(en) bitte...");
		 }
		 else if (document.pForm.language.value == "FR")
		{ 
		 alert("Votre Questions/ Remarques svp...");
		 }
		 document.pForm.telefoon.focus();
		 return false;
		}
	}

function echeck(address)
	{
	var at="@"
	var dot="."
	var lat=address.indexOf(at)
	var lstr=address.length
	var ldot=address.indexOf(dot)
	if (address.indexOf(at)==-1
 	|| address.indexOf(at)==-1
	|| address.indexOf(at)==0
	|| address.indexOf(at)==lstr
	|| address.indexOf(dot)==-1
	|| address.indexOf(dot)==0
	|| address.indexOf(dot)==lstr
	|| address.indexOf(dot)+1==lstr
	|| address.indexOf(at,(lat+1))!=-1
	|| address.substring(lat-1,lat)==dot
	|| address.substring(lat+1,lat+2)==dot
	|| address.indexOf(dot,(lat+2))==-1
	|| address.indexOf(" ")!=-1)
		{
	   	return false
		}
 	return true					
	}