function doForm(form) {
	document.getElementById(form).submit();
}

function doForm2(myForm) {
	if(formVal(document[myForm])) {
		document[myForm].submit();
	}
}

function doPop(doc, str, naam, width, height) {
	var x  = (screen.width - width) / 2;
	var y  = (screen.height - height) / 2;
	newpop = window.open(doc+"?"+str, naam, "width="+width+",height="+height+", toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=1,resizable=0,zoombox=0,left="+x+",top="+y);
	newpop.focus();
}

function openResult(sURL){
	newwindow=open(sURL,"newwin","scrollbars=yes, toolbar=no, directories=no, menu bar=no, resizable=yes, status=yes, width=700, height=520");
}

function openKoers(sURL){
	newwindow=open(sURL,"koers","scrollbars=yes, toolbar=no, directories=no, menu bar=no, resizable=yes, status=yes, width=640, height=600");
}

function openHelp(sURL){
	newwindow=open(sURL,"help","scrollbars=no, toolbar=no, directories=no, menu bar=no, resizable=yes, status=yes, width=640, height=600");
}

function openVideoplayer(sURL){
	newwindow=open(sURL,"videoplayer","scrollbars=no, toolbar=no, directories=no, menu bar=no, resizable=yes, status=yes, width=800, height=490");
}

function goTo(link){
	this.location.href=(link);
}

//menu preloader
image1 = new Image();
image1.src = "images/menu/nieuws_1.jpg";

image2 = new Image();
image2.src = "images/menu/overons_1.jpg";

image3 = new Image();
image3.src = "images/menu/contact_1.jpg";

image4 = new Image();
image4.src = "images/menu/rensport_1.jpg";

image5 = new Image();
image5.src = "images/menu/drafsport_1.jpg";

image6 = new Image();
image6.src = "images/menu/links_1.jpg";

image7 = new Image();
image7.src = "images/menu/speluitleg_1.jpg";

image8 = new Image();
image8.src = "images/menu/koersen_1.jpg";

image9 = new Image();
image9.src = "images/menu/inschrijven_1.jpg";

image10 = new Image();
image10.src = "images/menu/downloads_1.jpg";

image11 = new Image();
image11.src = "images/menu/faq_1.jpg";