function swapimage(elem){
	var x = document.getElementById(elem).src;
	document.getElementById("large-image").src = x;
}

function swapimageelem(elem){
	var src = elem.src;
	var alt = elem.alt;
	
	src = src.replace(/_s.jpg/, "_m.jpg");
	document.getElementById("large-image").src = src;
	document.getElementById("large-image").alt = alt;	
	
}

function swapanchorelem(elem){
	var link = elem.parentNode.href;
	var alt = elem.parentNode.title;
	
	document.getElementById("large-anchor").href = link;
	document.getElementById("large-anchor").title = alt;
}