function checkForm(){
error=0;
var re = new RegExp("^([A-Za-z0-9_|-]+[.]*[A-Za-z0-9_|-]+)+@[A-Za-z0-9|-]+([.][A-Za-z0-9|-]+)*[.][A-Za-z0-9]+$","ig");
if (document.subscribeform.email.value != '') {
if (!re.test(document.subscribeform.email.value)) {
alert('Onjuist emailadres ingevoerd!');
error = 1;
}
}else{
alert('Geen emailadres ingevoerd!');
error = 1;
}
if (error == 0){
return true;
}else{
return false;
}
};