var expiredate = new Date (); 
	expiredate.setTime(expiredate.getTime() + 1000 * 60 * 60 * 24);  
	//SET COOKIES
function set_cookie(name, value, expires)
{
    if (!expires) 
	{
        expires = new Date();
	} 
    document.cookie = name + "=" + escape(value) + "; expires=" + expires.toGMTString() + "; path=/";
}

function get_cookie (cookie_name)
{
   var results = document.cookie.match ( '(^|;) ?' + cookie_name + '=([^;]*)(;|$)' );
   if ( results )
    	{
        return ( unescape ( results[2] ) );
      }else{
        return null;
      }
}

function delete_cookie(name) 
{ 
   set_cookie(name,"",-1); 
}


var cookie_value = get_cookie(catid);
if(cookie_value=="0"){
cookie_value=1;
}
if(cookie_value){
}else{
set_cookie(catid, 1 ,expiredate);
cookie_value = get_cookie(catid);
}