nextTime = 10;
dbObj = document.body;
function movePlace() {
    scrollTop = parseInt($('#floatDiv').css('top'));
	scrollBottom = $(document).scrollTop()+40;
	
     	
    offsetSize = 0;
	if (scrollTop != scrollBottom) {
	    offsetSize = Math.ceil(Math.abs(scrollBottom - scrollTop) / 20);
	    offsetSize = (scrollBottom > scrollTop) ? offsetSize : -offsetSize;
	    
	    $('#floatDiv').css('top',parseInt($('#floatDiv').css('top')) + offsetSize);
	    
	}
		
	setTimeout("movePlace()", nextTime);
	
}

$(movePlace)