var aBtn=new Array();
var aBtnOv=new Array();

addButton(0,37,11);
addButton(1,40,11);
addButton(2,82,11);
addButton(3,68,11);
addButton(4,58,11);

function addButton(idx,w,h) {
	aBtn[idx]=new Image(w,h); aBtn[idx].src="img/nav/"+idx+".gif";
	aBtnOv[idx]=new Image(w,h); aBtnOv[idx].src="img/nav/"+idx+"o.gif";
}
function mOv(idx) {
	var img=getElement("mn"+idx);
	if (img!=null) img.src=aBtnOv[idx].src;
}
function mOut(idx) {
	var img=getElement("mn"+idx);
	if (img!=null) img.src=aBtn[idx].src;
}
function snOv(idx) {
	var obj=getElement("sn"+idx);
	if (obj!=null) obj.style.backgroundImage='url(img/ticko.gif)';
}
function snOut(idx) {
	var obj=getElement("sn"+idx);
	if (obj!=null) obj.style.backgroundImage='url(img/tick.gif)';
}