/*
 * jQuery history plugin
 *
 * Copyright (c) 2006 Taku Sano (Mikage Sawatari)
 * Licensed under the MIT License:
 *   http://www.opensource.org/licenses/mit-license.php
 *
 * Modified by Lincoln Cooper to add Safari support and only call the callback once during initialization
 * for msie when no initial hash supplied.
 */


jQuery.extend({
	historyCurrentHash: undefined,
	
	historyCallback: undefined,
	
	historyInit: function(callback){
		jQuery.historyCallback = callback;
		var current_hash = location.hash;
		
		jQuery.historyCurrentHash = current_hash;
		jQuery.historyCallback(current_hash.replace(/^#/, ''));
		setInterval(jQuery.historyCheck, 100);
	},
	
	historyAddHistory: function(hash) {
		// This makes the looping function do something
		jQuery.historyBackStack.push(hash);
		
		jQuery.historyForwardStack.length = 0; // clear forwardStack (true click occured)
		this.isFirst = true;
	},
	
	historyCheck: function(){
		var current_hash = location.hash;
		if(current_hash != jQuery.historyCurrentHash) {
			jQuery.historyCurrentHash = current_hash;
			jQuery.historyCallback(current_hash.replace(/^#/, ''));
		}
	},
	
	historyLoad: function(hash){
		var newhash;
		
		if (jQuery.browser.safari) {
			newhash = hash;
		}
		else {
			newhash = '#' + hash;
			location.hash = newhash;
		}
		jQuery.historyCurrentHash = newhash;
		jQuery.historyCallback(hash);
	}
});