$(document).ready(function() {
	$("img.hoverImage").mouseover(function() {
		var oldSrc = $(this).attr("src");
		var parts = splitFile(oldSrc);
		var newSrc = parts[0] + "_over." + parts[1];
		$(this).attr("src",newSrc);
	});
	$("img.hoverImage").mouseout(function() {
		var oldSrc = $(this).attr("src");
		var parts = splitFile(oldSrc);
		var newSrc;
		
		if ($(this).parent().is(".activeNavigation")) {
			newSrc = parts[0] + "_aktiv." + parts[1];
		}
		else {
			newSrc = parts[0] + "." + parts[1];
		}
		
		$(this).attr("src",newSrc);
	});
	$("a.activeNavigation").each(function() {
		$(this).children("img").each(function() {
			var oldSrc = $(this).attr("src");
			var parts = splitFile(oldSrc);
			var newSrc = parts[0] + "_aktiv." + parts[1];
			$(this).attr("src",newSrc);
		});
	});
});

function splitFile(file) {
	var fileName = file.substr(0,file.lastIndexOf("."));
	fileName = fileName.replace(/\_over/g,"");
	fileName = fileName.replace(/\_aktiv/g,"");
	
	var ending = file.substr(file.lastIndexOf(".") + 1,file.length);
	
	return [fileName,ending];
}