function naam(pix,altt) { 
	document.images['large'].src=pix;
	document.form['afbeelding'].value=pix;
	document.images['large'].alt=altt;
	window.location = String(window.location).replace(/\#.*$/, "") + "#fase2";
}

function check (form) {
	if (form.naam.value == 0) {
		document.form.submit.disabled=true;
	}
	else if (form.email.value == 0) {
		document.form.submit.disabled=true;
	}
	else if (form.ontnaam.value == 0) {
		document.form.submit.disabled=true;
	}
	else if (form.ontemail.value == 0) {
		document.form.submit.disabled=true;
	}
	else if (!(/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,4})+$/.test(form.ontemail.value))) {
		document.form.submit.disabled=true;
	}
	else if (!(/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,4})+$/.test(form.email.value))) {
		document.form.submit.disabled=true;
	}
	else if (form.bericht.value == 0) {
		document.form.submit.disabled=true;
	}
	else if (form.afbeelding.value == 0) {
		document.form.submit.disabled=true;
	}
	else {
		document.form.submit.disabled=false;
	}
}