A history list object that behaves like browser's history

js-history-list.js

function HistoryList(home)
	{
	var arr = [home];
	var ptr = 1;
	this.push = function(elem) { arr.splice(ptr, arr.length-ptr, elem); ptr = arr.length; return this; }
	this.moveTo = function(pos) { ptr = Math.min(Math.max(1, pos), arr.length); return this; }
	this.move = function(steps) { return this.moveTo(ptr + steps); }
	this.get = function() { return arr[ptr-1]; }
	}