text: function levenshtein(a,b)
  {
    console.log(a+"    "+b);
    var longer = a.length>=b.length ? a : b
    var shorter = a.length<b.length ? a : b
    var tabl = longer.split('') || [], tabs = shorter.split('') || [], count = 0, rem = [];
    tabl.map(function(x,i){
      if(x != shorter[i]){
        count++;
        rem.push(x);
        if(rem.indexOf(shorter[i])!=-1){
          count--;
          rem = rem.splice(rem.indexOf(x),rem.length);
          }
      }
    })
    return count;
  }