function showPic(whichPic){
	var text = whichPic.getAttribute("title");
	var description = document.getElementById("caption");
	var source = whichPic.getAttribute("href");
	var placeholder = document.getElementById("placeholder");
	placeholder.setAttribute("src", source);	
	description.firstChild.nodeValue = text;
}

/*function countBodyChildren(){
	var body_element = document.getElementsByTagName("body")[0];
	alert(body_element.nodeType);
}

window.onload = countBodyChildren;
*/