$(document).ready(function(){
	   $(window).scroll(function(){
		  $('#colDir').animate({top:$(window).scrollTop()- 50 +"px" },{queue: false, duration: 0});
		  if($(window).scrollTop()<55){
			  $('#colDir').animate({top:$(window).scrollTop() + 15 +"px" },{queue: false, duration: 0});
			 }
		});
   
  });