$(document).ready(function(){  
  
   checkCookie();

	function getCookie(c_name)	{

		var i,x,y,ARRcookies=document.cookie.split(";");
		for (i=0;i<ARRcookies.length;i++)
		  {
		  x=ARRcookies[i].substr(0,ARRcookies[i].indexOf("="));
		  y=ARRcookies[i].substr(ARRcookies[i].indexOf("=")+1);
		  x=x.replace(/^\s+|\s+$/g,"");
		  if (x==c_name)
		    {
		    return unescape(y);
		    }
		  }
	}

	function setCookie(c_name,value,exdays)	{

		var exdate=new Date();
		exdate.setDate(exdate.getDate() + exdays);
		var c_value=escape(value) + ((exdays==null) ? "" : "; expires="+exdate.toUTCString());
		document.cookie=c_name + "=" + c_value;
	}

	function checkCookie()
	{
		var username=getCookie("dejavu");
			if (username!=null)  {  
			}
			else {
			    setCookie("dejavu","ok",30);
			    $('#fade').show();		
			    $('#light').show();		   
			}
	}
	
});