function setDiv(uID, aID, imagesDir) {
var div = document.getElementById(uID);
var d = document.getElementsByTagName('div');
if (div.style.display == 'none') {
for (var i = 0; i < d.length; i++){
	if (d[i].style.display == 'block'){
		d[i].style.display = 'none';
		document.getElementById(d[i].id + '_lay').style.background = 'url(' + imagesDir + 'plussign.gif)';
		document.getElementById(d[i].id + '_lay').style.backgroundPosition = 'bottom';
		document.getElementById(d[i].id + '_lay').style.backgroundRepeat = 'no-repeat';
	}
}
document.getElementById(uID).style.display = 'block';
document.getElementById(uID + '_lay').style.background = 'url(' + imagesDir + 'minussign.gif)';
document.getElementById(uID + '_lay').style.backgroundPosition = 'bottom';
document.getElementById(uID + '_lay').style.backgroundRepeat = 'no-repeat';
document.getElementById(aID).click();
}
else {
document.getElementById(uID).style.display = 'none';
document.getElementById(uID + '_lay').style.background = 'url(' + imagesDir + 'plussign.gif)';
document.getElementById(uID + '_lay').style.backgroundPosition = 'bottom';
document.getElementById(uID + '_lay').style.backgroundRepeat = 'no-repeat';
}
}

function closeLastOpen(uID){
document.getElementById(uID).style.display = 'none';
document.getElementById(uID + '_lay').style.background = 'url(' + imagesDir + 'plussign.gif)';
document.getElementById(uID + '_lay').style.backgroundPosition = 'bottom';
document.getElementById(uID + '_lay').style.backgroundRepeat = 'no-repeat';
}