var map;
var marker;
var center;
var contactInfo;
var mapPanel;
var directionsPanel;
var directions;
var address;

function load() {
	if (GBrowserIsCompatible()) {
		address = $('contact_address');
		mapPanel = $('map');

		map = new GMap2(mapPanel);
		center = new GLatLng(51.4999301,3.8343334);
		map.addControl(new GLargeMapControl);

		map.setCenter(center, 16);
		
		marker = new GMarker(center);
		map.addOverlay(marker);
		marker.openInfoWindowHtml(address.innerHTML);
	}
}

function elemFocus (elem, defaultValue){
	if(elem.value == defaultValue){
		elem.value = '';
		elem.className = 'filled';
	}
}

function elemBlur(elem, defaultValue){
	if(elem.value == ''){
		elem.value = defaultValue;
		elem.className = 'empty';
	}
}

function validate(form_id,email) {
   var reg = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;
   var address = document.forms[form_id].elements[email].value;
   if(reg.test(address) == false) {
      alert('Ongeldig e-mailadres');
      return false;
   }
}