focusing on next input (jquery)

Question

I\'ve got four inputs that each take one number. What I want to do is set the focus automatically to the next input once the number has been set. They all have the class \"i

Answer 1

This is the code that complete your all needs.

$(".input").keyup(function(e) {

if (e.which == 8 || e.which == 46){ 
    //backspace / Delete
    $(this).val('');
    $(this).prevAll('input:first').focus();
}
else
{ 
    var spcl_arr = ["~","!","@", "#", "$", "%", "^", "&", "*", "(", ")", "+","-", "=", "." ,"/"];
   if(e.which == 13){ // Enter Kay
      return false;
   }
  else if(jQuery.inArray($(this).val(), spcl_arr) !== -1 ){ 
         $(this).val('');
         $(this).focus();
        return false;
   }else{ 
       var regex = new RegExp("^[a-zA-Z0-9]+$");
        var str = String.fromCharCode(!e.charCode ? e.which : e.charCode);
        if (regex.test(str)) { 
             if (this.value.length == this.maxLength) {
                 $(this).next('.input').focus();
             }
        }else{
            $(this).val('');
            $(this).focus();
            return false;
        }
    }
}

});