function qs(k,w) { // get GET param from referrer or location (when w='l')
      if(!qs.l) {
            qs.l=window.location.href;
            qs.l=((p=qs.l.indexOf('?'))>0)?qs.l.substring(p):'';
            qs.r=document.referrer;
            qs.r=((p=qs.r.indexOf('?'))>0)?qs.r.substring(p):'';
        }
        var re = new RegExp( "[\?&]" + k + "=([^&$#]*)", "i" );
          var o = (!w)?qs.l.match( re ):qs.r.match( re );

        return ( o == null )?false:o[1];
    }

var openstat_text=qs('_openstat','l');