function isNotMax(e){
       e = e || window.event;
       var target = e.target || e.srcElement;
       var code=e.keyCode?e.keyCode:(e.which?e.which:e.charCode)

       switch (code){
               case 13:
               case 8:
               case 9:
               case 46:
               case 37:
               case 38:
               case 39:
               case 40:
                       return true;
       }
       return target.value.length <= target.getAttribute('maxlength');
}