var regexEmail = /^(("[\w-\s]+")|([\w-]+(?:\.[\w-]+)*)|("[\w-\s]+")([\w-]+(?:\.[\w-]+)*))(@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$)|(@\[?((25[0-5]\.|2[0-4][0-9]\.|1[0-9]{2}\.|[0-9]{1,2}\.))((25[0-5]|2[0-4][0-9]|1[0-9]{2}|[0-9]{1,2})\.){2}(25[0-5]|2[0-4][0-9]|1[0-9]{2}|[0-9]{1,2})\]?$)/i;


function checkFormOuders()
{   
    if(document.getElementById('Mijnemailadresis').value=='' )
    {
        window.alert('E-mail adres is verplicht.');
        document.getElementById('Mijnemailadresis').focus();
        return false;
    }
    else if(!regexEmail.test(document.getElementById('Mijnemailadresis').value))
    { 
        alert("Het door u ingevulde emailadres is niet correct"); 
        document.getElementById('Mijnemailadresis').focus(); 
        return false; 
    }
    // document.FormOuders.submit();
}