function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
	function preloadImages() {
	if (document.images) {
		buemail = newImage("images/bu_email_over.gif");
		buaanbiedingen = newImage("images/bu_aanbiedingen_over.gif");
		buactiviteiten = newImage("images/bu_activiteiten_over.gif");
		buboeken = newImage("images/bu_boeken_over.gif");
		buvaargebieden = newImage("images/bu_vaargebieden_over.gif");
		buservice = newImage("images/bu_service_over.gif");
		buamorgos = newImage("images/bu_amorgos_over.gif");
		preloadFlag = true;
	}
}


//Open window
function Open_me(url) {
	nieuw=window.open(url,"","resizable=yes,scrollbars=yes,toolbar=no,location=no,directories=no,status=no,menubar=no,width=780,height=400,top=30,left=20");
	nieuw.window.focus();
}


//Open full window voor schipperssite
function Open_mes(url) {
	nieuw=window.open(url,"","resizable=yes,scrollbars=yes,toolbar=yes,location=no,directories=no,status=no,menubar=yes,width=780,height=400,top=30,left=20");
	nieuw.window.focus();
}


//Open Window voor boekingsformulieren
function Open_form(url) {
nieuw=window.open(url,"","resizable=yes,scrollbars=no,toolbar=no,location=no,directories=no,status=no,menubar=no,width=780,height=560,top=30,left=0");
nieuw.window.focus();
}


//Open Window voor gastenboek
function Open_gb(url) {
nieuw=window.open(url,"","resizable=no,scrollbars=yes,toolbar=no,location=no,directories=no,status=no,menubar=no,width=550,height=500,top=30,left=0");
nieuw.window.focus();
}

//Open Window breed en hoog (prijswizard)
function Open_aanb(url) {
nieuw=window.open(url,"","resizable=yes,scrollbars=yes,toolbar=no,location=no,directories=no,status=no,menubar=no,width=880,height=670,top=30,left=20");
nieuw.window.focus();
}

//Open window
function Open_megr(url) {
	nieuw=window.open(url,"","resizable=yes,scrollbars=yes,toolbar=no,location=no,directories=no,status=no,menubar=no,width=800,height=650,top=30,left=20");
	nieuw.window.focus();
}