/**
 * jQuery hashchange 1.0.0
 * 
 * (based on jquery.history)
 *
 * Copyright (c) 2008 Chris Leishman (chrisleishman.com)
 * Dual licensed under the MIT (MIT-LICENSE.txt)
 * and GPL (GPL-LICENSE.txt) licenses.
 */
(function($) {

$.fn.extend({
    hashchange: function(callback) { this.bind('hashchange', callback) },
    openOnClick: function(href) {
		if (href === undefined || href.length == 0)
			href = '#';
		return this.click(function(ev) {
			if (href && href.charAt(0) == '#') {
				// execute load in separate call stack
				window.setTimeout(function() { $.locationHash(href) }, 0);
			} else {
				window.location(href);
			}
			ev.stopPropagation();
			return false;
		});
    }
});

var curHash;

$.extend({
	locationHash: function(hash) {
		if (curHash === undefined) return;

		if (!hash) hash = '#';
		else if (hash.charAt(0) != '#') hash = '#' + hash;
		
		location.hash = hash;
		
		if (curHash == hash) return;
		curHash = hash;
		
		$.event.trigger('hashchange');
	}
});

$(document).ready(function() {
    curHash = location.hash;
    setInterval(checkHash, 100);
});

function checkHash() {
    var hash = window.location.hash;
    if (hash != curHash) {
        curHash = hash;
        $.event.trigger('hashchange');
    }
}


})(jQuery);