var $={
  get:function(a){return (typeof a=='object')?a:document.getElementById(a)},
  trim:function(_){return _.replace(/(^\s*)|(\s*$)/g,'');},
  cookie:function(name,value){
    if(typeof(value)=='undefined'){
      var arr,reg=new RegExp("(^| )"+name+"=([^;]*)(;|$)");
      if(arr=document.cookie.match(reg)) return unescape(arr[2]);else return '';
    }else{
      var exp=new Date(new Date().getTime()+(arguments[2]?arguments[2]:365*24*60*60*1000));
      document.cookie = name + "="+ escape (value) + ";path=/;expires=" + exp.toGMTString();
    }
  },
  ajax:function(_){
    switch(_.type){
    case 'json':if(head){head.removeChild(script)};
    case 'script':var head=document.getElementsByTagName('head')[0],script=document.createElement('script');script.src=_.url;head.appendChild(script);break;
    case 'style':document.writeln('<link rel="stylesheet" href="'+_.url+'" type="text/css" media="all" />');break;
    default:
      var xml=function(){return window.ActiveXObject?new ActiveXObject("Microsoft.XMLHTTP"):new XMLHttpRequest();}();
      xml.open((_.data?'POST':'GET'),_.url,(_.async?true:false));
      xml.setRequestHeader("Content-Type", "application/x-www-form-urlencoded;charset=UTF-8");
      if(_.async){xml.onreadystatechange=function (){if(xml.readyState==4)fun(xml);};xml.send(_.data);}else{xml.send(_.data);return xml.responseText;}break;
    }
  }
}