function showTargets() {
	document.getElementById('target').src = backPath + "/Back_" + backNumber + ".png";
	for (i=0; i< numFoils; i++) {
		document.getElementById('item_' + i).style.visibility = "visible";
	}
}
	
function initializeCounters (cor, inc) {		
	document.getElementById("cor").innerHTML = cor;
	document.getElementById("inc").innerHTML = inc;
	t=setTimeout("showTargets()",3000);
}