// JavaScript Document
function CheckFormSubscribe() {
	
	var errorMsg = "";
	
	//Check for an name
	if (document.newsletterform.ContactNameSub.value==""){
		errorMsg += "\nContactpersoon\t - Vul de naam van de contactpersoon in";
	}
	
	//Check emailadres
		var str = document.newsletterform.EmailSub.value
		var at="@"
		var dot="."
		var lat=str.indexOf(at)
		var lstr=str.length
		var ldot=str.indexOf(dot)
		
		if (str==null || str=="" || str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr || str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr || str.indexOf(at,(lat+1))!=-1 || str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot || str.indexOf(dot,(lat+2))==-1 || str.indexOf(" ")!=-1){
		   errorMsg += "\nE-mailadres\t - Vul een (geldig) emailadres in";
		}
	
	//If there is a problem with the form then display an error
	if (errorMsg != ""){
		msg = "____________________________________________________________________\n\n";
		msg += "De aanmelding is niet verzonden omdat er een probleem is.\n";
		msg += "Corrigeer het probleem en verzendt het formulier opnieuw.\n";
		msg += "____________________________________________________________________\n\n";
		
		errorMsg += alert(msg + errorMsg + "\n\n");
		return false;
	}
	
	return true;
}

function CheckFormUnSubscribe() {
	
	var errorMsg = "";
	
	//Check emailadres
		var str = document.newsletterform.EmailUnSub.value
		var at="@"
		var dot="."
		var lat=str.indexOf(at)
		var lstr=str.length
		var ldot=str.indexOf(dot)
		
		if (str==null || str=="" || str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr || str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr || str.indexOf(at,(lat+1))!=-1 || str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot || str.indexOf(dot,(lat+2))==-1 || str.indexOf(" ")!=-1){
		   errorMsg += "\nUw emailadres\t - Vul een (geldig) emailadres in svp";
		}
	
	//If there is a problem with the form then display an error
	if (errorMsg != ""){
		msg = "____________________________________________________________________\n\n";
		msg += "De afmelding is niet verzonden omdat er een probleem is.\n";
		msg += "Corrigeer het probleem en verzendt het formulier opnieuw.\n";
		msg += "____________________________________________________________________\n\n";
		
		errorMsg += alert(msg + errorMsg + "\n\n");
		return false;
	}
	
	return true;
}