/*
// Project: De Nieuwe Band
// Redesign web site 2005/2006/2007

// JavaScript functions for product browser. Loaded on demand.

// Metalusions - Arjan Haringa
// De Nieuwe Band - Andre Bosma
// De Nieuwe Band - Theo Kerkhof
*/

var patterns = new Array();

function checkform(obj){
	var check = true;
	if(document.getElementById){
		if(obj.elements['z'].value.match(/^[0-9]{4}$/)){
			document.getElementById('error--z').style.display = 'none';
			obj.elements['z'].style.color = '#000';
			obj.elements['z'].style.borderColor = '#000';
			}
		else {
			document.getElementById('error--z').style.display = 'block';
			obj.elements['z'].style.color = '#f00';
			obj.elements['z'].style.borderColor = '#f00';
			obj.elements['z'].focus();
			check = false;
			}
		if(!obj.elements['s'].checked && !obj.elements['f'].checked && !obj.elements['h'].checked){
			document.getElementById('error--notype').style.display = 'block';
			check = false;
			}
		else {
			document.getElementById('error--notype').style.display = 'none';
			}
		}
	return check;
	}