function f_online()
{
	//alert(document.body.scrollTop);
	var o_online=document.getElementById('online');
	if(o_online!=null)
	{
		
	var n_top=document.documentElement.scrollTop;
	//o_online.style.top=n_top+'px';
	var n_top_current=o_online.style.top;
	n_top_current=parseInt(n_top_current.replace("px",""));
	n_top_target=n_top+200;
	//alert(n_top_current+'...'+n_top_target);
	if(n_top_current!=n_top_target)
	{
		if(Math.abs(n_top_current-n_top_target)>100)
		{
			n_step=60;
		}
		else if(Math.abs(n_top_current-n_top_target)>30)
		{
			n_step=30;
		}
		else if(Math.abs(n_top_current-n_top_target)>15)
		{
			n_step=15;
		}
		else if(Math.abs(n_top_current-n_top_target)>5)
		{
			n_step=5;
		}
		else
		{
			n_step=1;
		}
		
		if(n_top_current<n_top_target)
		{
			n_top_current+=n_step;
		}
		else
		{
			n_top_current-=n_step;
		}
		o_online.style.top=n_top_current+'px';
	}
	//alert(o_online.style.top);

	o_online.style.left=(document.documentElement.scrollLeft+document.documentElement.clientWidth-111)+'px';
	o_online.style.display='';	
	
	}
	
}