var img1 = new Image();
img1.src = "le11/1.gif";
var img2 = new Image();
img2.src = "le11/2.gif";
var img3 = new Image();
img3.src = "le11/3.gif";
var img4 = new Image();
img4.src = "le11/4.gif";
var img5 = new Image();
img5.src = "le11/5.gif";

function showImg(doko, mydiv, imgnb ) {
	var mondiv = document.getElementById(mydiv);
	if (doko.checked) {
		mondiv.style.background = "url(le11/" + imgnb + ".gif)";
	}
	else {
		mondiv.style.background = "transparent";
	}
}

function showRandom () {
	for (var i=0; i<5; i++) {
		var haz = Math.ceil( 5 * Math.random() );
		var haz2 = Math.ceil( 2 * Math.random() );
		var ledivname = "mondiv" + haz;
		var lediv = document.getElementById(ledivname);
		var laboitenb = "im" + haz;
		var laboite = document.getElementById(laboitenb);
		if (haz2 == 1) {
			var lurl = "le11/" + haz + ".gif"
			lediv.style.background = "url(" + lurl + ")";
			laboite.checked = 1;
		}
		else {
			lediv.style.background = "transparent";
			laboite.checked = 0;
		}
	}
}