Self-written hashchange navigation

[EliteGM]

I know libraries exist for this, but I still wanted to write something of my own, using jQuery and

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"nav.js"

function hashToLink(hash) { //Converts the hash into a regular page, including GET attributes
	args = "";
	hash = hash.substring(1).split("/");
	base = hash[0];
	for(i = 1; i < hash.length; i++) {
		args = args + (i == 1 ? "?" : "&") + hash[i];
	}
	return base +".php"+ args;
}

function loadPage(page) {
	$(".main-content").fadeTo(400, 0, function () {
		$.get("pages/"+ page, function(data) {
			$(".main-content").html(data);
		}).fail(function() {
			$(".main-content").html("Could not load 'pages/"+ page +"'.");
		});
		$(".main-content").fadeTo(400, 1);
	});
}

$(document).ready(function() {
	$(window).hashchange(function() {
		loadPage(hashToLink(location.hash));
	});
	loadPage(window.location.hash != "" ? hashToLink(window.location.hash) : "home.php"); //Load selected/default page
});

I basically have it take a #page/opt=1/optex=2 format and put that into page.php?opt=1&optex=2 and so on.

Any criticisms/advice? Thanks