function hashArray()
{
	this.length = 0;
	this.items = new Array();

	for(var i = 0; i < arguments.length; i +=2)
	{
		
		if(typeof(arguments[i + 1]) != "undefined")
		{
			this.items[arguments[i]] = arguments[i + 1];
			this.length++;
		}

	}

	this.removeItem = function(in_key)
	{
		var tmp_previous;
		
		if(typeof(this.items[in_key]) != "undefined")
		{
			this.length--;
			var tmp_previous = this.items[in_key];
			delete this.items[in_key];
		}
							   
		return tmp_previous;
	}

	this.getItem = function(in_key)
	{
		return this.items[in_key];
	}

	this.setItem = function(in_key, in_value)
	{
		var tmp_previous;
		
		if (typeof(in_value) != "undefined")
		{
			
			if (typeof(this.items[in_key]) == "undefined")
			{
				this.length++;
			}
			else
			{
				tmp_previous = this.items[in_key];
			}

			this.items[in_key] = in_value;
		}

		return tmp_previous;
	}
	
	this.hasItem = function(in_key)
	{
		return typeof(this.items[in_key]) != "undefined";
	}

	this.clear = function()
	{
		
		for (var i in this.items)
		{
			delete this.items[i];
		}

		this.length = 0;
	}

}