U.Helper

/*
Classification.cookie
Some ideas took from jQ.Cookie plugin.
Thanks to B@rmaley.e ><e for the help with RegExp in 'Get cookie'.
*/
Classifcation.cookie=function(name,value,options){
     if(typeof value=='undefined'){ //Get cookie.
        return (new RegExp('\\b'+name+'=([^;]*)')).exec(document.cookie)?decodeURIComponent(RegExp.$1):null;
     }else{ //Set cookie.
        options=options||{};
        if(value===null){ //Delete cookie.
           options.expires=-1;
        }
        if(options.expires){
           var date;
           if(typeof options.expires=='number'){ //Count of days.
              date=new Date();
              date.setTime(date.getTime()+(options.expires*24*60*60*1000));
           }else{ //Time in UTC format
              date=options.expires;
           }
           option.expires=date.toUTCString();
        }
        document.cookie=name+'='+encodeURIComponent(value)+(options.expires?';expires='+options.expires:'')+(options.path?';path='+options.path:'')+
(options.domain?';domain='+options.domain:'')+(options.secure?';secure':'');
     }
}