// Foto Layer functions

// Show/Hide functions for non-pointer layer/objects
function show(id,image,imgName,prePath) {
		var img = new Image();
		img.src = prePath + 'images/' + image + '.jpg'
		img.onLoad = doShow(id,imgName,img);
}

function hide(id) {
        if (is.ns) document.getElementById(id).style.visibility = "hidden"
        else if (is.ie) document.all[id].style.visibility = "hidden"
}

function doShow(id,imgName,img) {
	if (is.ns) {
		if (is.ns5)
			var layer = document.getElementById(id);
		else
			var layer = eval(document.id);
		// Change the image
		eval('document.' + imgName + '.src = img.src');
	
		// Show the layer
		layer.style.visibility = "visible";
	}
    else if (is.ie) {
		// Change the image
		document.all[imgName].src = img.src;
	
		// Show the layer
		document.all[id].style.visibility = "visible"
	}
}