$(document).ready(function() {
	$("[data-trigger-hover=1]").hover(
		function() {
			hoverSwap($(this).children());
		},
		function() {
			hoverSwap($(this).children());
		}
	);
});

function hoverSwap(obj)
{
	var src = obj.attr("src");
	obj.attr("src", obj.attr("data-hover"));
	obj.attr("data-hover", src);
}