function prepareGallery()
{
	var gallery = document.getElementById("gallery");
	var links = gallery.getElementsByTagName("a");
	for(var i = 0; i < links.length; i++)
	{
		links[i].onmouseover = function()
		{
			return showPic(this);
		}
		links[i].onmouseout = function()
		{
			return resetPic();
		}
		links[i].onclick = function()
		{
			return false;
		}
	}
}

function showPic(whichpic)
{
	var source = whichpic.getAttribute("href");
	var captionDiv = whichpic.getAttribute("rel");
	var captiontxt = document.getElementById(captionDiv).innerHTML;
	var placeholder = document.getElementById("placeholder-img");
	if(placeholder.nodeName != "IMG") return true;
	placeholder.setAttribute("src",source);
	var caption = document.getElementById("caption");
	caption.innerHTML = "";
	caption.innerHTML = captiontxt;
	return false;
}

function resetPic()
{
	var placeholder = document.getElementById("placeholder-img");
	if(placeholder.nodeName != "IMG") return true;
	placeholder.setAttribute("src","../imgs/galleryn.jpg");
	var caption = document.getElementById("caption");
	caption.innerHTML = "";
	return false;
}

addLoadEvent(prepareGallery);