var x;
function init() {
	onder = 150;
	boven = 120;
	x = new Array();
	x[0] = new Array();
	x[0]["positie"] = onder;
	x[0]["doel"] = onder;
	x[0]["aid"] = document.getElementById("utrecht");
	x[1] = new Array();
	x[1]["positie"] = onder;
	x[1]["doel"] = onder;
	x[1]["aid"] = document.getElementById('haarlem');
	x[2] = new Array();
	x[2]["positie"] = onder;
	x[2]["doel"] = onder;
	x[2]["aid"] = document.getElementById('maarssen');
	var i = 0;
}

function moveit() {
	for (i = 0;i <= 2;i++) {
		if ( x[i]['positie'] < x[i]['doel'] ) {
			x[i]['positie'] = x[i]['positie'] + 4;
			x[i].aid.style.top = x[i]['positie'] + 'px';
			x[i]['positie']++;
			x[i].aid.style.top = x[i]['positie'] + 'px';
		}
		if ( x[i]['positie'] > x[i]['doel'] ) {
			x[i]['positie'] = x[i]['positie'] - 4;
			x[i].aid.style.top = x[i]['positie'] + 'px';
			x[i]['positie']--;
			x[i].aid.style.top = x[i]['positie'] + 'px';
		}
	}
}

function set_doel(locatie,wat) {
	x[locatie].doel = wat;
}

function starten() {
	for (i = 0;i <= 2;i++) {
		if ( x[i].aid.className == "stad2" ) {
			x[i]['doel'] = onder;
			x[i]['positie'] = boven;
		}
	}
}

function openfoto(url, breedte, hoogte) {
	var w = window.open(url, 'foto','width='+breedte+',height='+hoogte);
	w.focus();
	return false;
}