function openPortfolioImage(id, image_width, image_height) {

	window.open('portfolioimage.php?id='+id+'', '', 'width='+image_width+', height='+image_height+''); 

}

function logOut() {
	if(confirm('Weet u zeker dat u uit wilt loggen?')) {
		location.href = "index.php?module=projects&action=logOut";
	}
	return false;
}


function downloadFile(id) {
	location.href = "downloadfile.php?id="+id;
}


function checkForm(formName) {
	
	var error = "";
	var theForm = document.getElementById(formName);
	
	
	if(formName == "contactForm") {
		if(theForm.contactperson.value == "") {
			error += "- Naam is verplicht\r\n";
		}
		if(theForm.telephone.value == "") {
			error += "- Telefoonnummer is verplicht\r\n";
		}
		if(theForm.email.value == "") {
			error += "- Emailadres is verplicht\r\n";
		}
		if(theForm.question.value == "") {
			error += "- Vraag/Opmerking is verplicht\r\n";
		}

	}
	
	
	if(error) {
		error = error+"Gaarne deze velden invullen.";
		alert("Foutmelding:\r\n"+error);
		return false;
	} else {
		theForm.submit();
		return true;
	}
}