$(document).ready(function() {
	$("img.changeImg")
		.mouseover(function () {
			var imgName = $(this).attr("src").replace("l.", "h.");
			$(this).attr("src", imgName);
		})
		.mouseout(function () {
			var imgName = $(this).attr("src").replace("h.", "l.");
			$(this).attr("src", imgName);
		})
		.mousedown(function () {
			var imgName = $(this).attr("src").replace("h.", "h.");
			$(this).attr("src", imgName);
		})
		.mouseup(function () {
			var imgName = $(this).attr("src").replace("h.", "h.");
			$(this).attr("src", imgName);
		});
});