function banner_arrive() 
{
	
	offsets = document.viewport.getScrollOffsets();
	distance = 200 + offsets[1];
	
	$('banner_surround').morph('top:'+distance+'px;', {duration: 2.0, transition: Effect.Transitions.spring, delay:5,
		afterFinish: function()
		{
			//new Ajax.Request('/setFloatBannerSession.php');
			interval = setInterval("scroller();",50);
		}
		
	})	
}


function scroller()
{

	offsets = document.viewport.getScrollOffsets();
	distance = 200 + offsets[1]
	$('banner_surround').morph('top:'+distance+'px;', {duration: 2.0, transition: Effect.Transitions.spring})

}

function fadeAway()
{
	Effect.Fade('scroll_banner',{afterFinish: function()
	{
		clearInterval(interval);
		new Ajax.Request('/setFloatBannerSession.php');
	}
	})
}