// JavaScript Document

var formError = "";
var maxChars = 200;

function validate_form(toCheck) {
	if (toCheck.name.value == "") {
		formError += "Geef uw naam op.\n";
	}
	if (toCheck.email.value == "") {
		formError += "Geef uw email adres op.\n";
	}
	if ((toCheck.email.value.indexOf ('@',0) == -1 || toCheck.email.value.indexOf ('.',0) == -1) && toCheck.email.value != "") {
		formError += "Controleer uw email adres.\n";
	}
	if (toCheck.message.value == "" || toCheck.message.value.length < 10) {
		formError += "Vergeet uw bericht niet.\n";
	}
	if (toCheck.message.value.length > maxChars) {
		formError += "Uw bericht is te lang.\n";
	}
	if (formError.length > 1) {
		alert(formError);
		formError = "";
		return false;
	} else {
		return true;
	}
}
	
function countChars() {
	if (document.getElementById("message").value.length > maxChars) {
		document.getElementById("message").value = document.getElementById("message").value.substring(0, maxChars);
	} else {
		document.getElementById("remainingChars").value = (maxChars - document.getElementById('message').value.length);
	}
}