function Filter(main)
	{
		//alert('filter');
		this._main = main;
	}
	
Filter.prototype.doFilter = function(page)
	{
		if(page == 0)
			{
				this._main.doNavigate(page);
			}
			
		if(page == 1 || page == 2 || page == 3 || page == 4 || page == 5)
			{
				this._main.doValidate(page);
			}
			
		if(page == "interstitial")
			{
				this._main.doCalculate();
			}
		
		if(page == "interstitialSp")
			{
				this._main.doCalculate();
			}
	}