Simple function to smooth-scroll to the bottom of the page with a basic ease

ScrolltoBottom.js

// -------------------------------------------------------------------------------
// Metodo scrollear al final de la pagina
scrollToBottom  : function()
{

	var acceleration   = 1;	
	var totalOffset	   = 0;
	var step	   = 1;

	var scrollTimer   = setInterval( function() 
	{
		window.scrollBy(0, (step + acceleration));

		offset = Math.max( window.pageYOffset,  document.documentElement.scrollTop );
		acceleration++;

		if( totalOffset >= offset )
		{
			clearInterval( scrollTimer );
		}
		else
		{
			totalOffset = offset;
		}

	}, 5);
}