function gaan_email() {
    var formulier;
    if(formulier = document.forms[0]) {
        formulier.setAttribute("action", "contact.php");
        formulier.submit();
    }
}

function gaan_email() {
    var formulier;
    if(formulier = document.forms[0]) {
        formulier.setAttribute("action", "add_link.php");
        formulier.submit();
    }
}

function open_window(url)	{
	window.open(url,"_blank","toolbar=no, location=no, directories=no, status=no, menubar=no, scrollbars=no, resizable=no, copyhistory=no, width=820, height=620");
}