if (document.images) {
	r1n = new Image();
	r1n.scr = "images/ok.gif";
	r1a = new Image();
	r1a.scr = "images/ok2.gif";
	r2a = new Image();
	r2a.scr = "images/oka.gif";
	r2n = new Image();
	r2n.scr = "images/okn.gif";
}

function ilk(n1,n2) {if (document.images)	toggle(n1); document["Imga"+n2+""].src=r2a.scr;return ilk=n2;}
function aktif(id) {if (document.images)	document["Imga"+id+""].src=r2a.scr;}
function deaktif(id) {if (document.images)	if (id!=ilk) document["Imga"+id+""].src=r2n.scr;}

function toggle(targetId) {
	document["Img"+targetId+""].src=r1n.scr;
	var target = document.getElementById(targetId);
	if (target.style.display == "none"){
		for (i = 1; i < 8; i++)
			{
				document.getElementById(i).style.display = "none";
				if (i==targetId) document["Img"+i+""].src=r1a.scr;
				else document["Img"+i+""].src=r1n.scr;
			}
		target.style.display='inline';
	} else {
		target.style.display="none";
	}
}