Learning jQuery

I have already posted about "jQuery code to allow only numbers in textbox", but one of my reader asked me to allow arrow keys as well. I have modified the code slightly to allow arrow keys. I thought it's good idea to share with all my readers. See below jQuery code.

$(document).ready(function(){ 
$("#txtNumbers").keydown(function(event) {
   if(event.shiftKey)
        event.preventDefault();
   if (event.keyCode == 46 || event.keyCode == 8) {
   }
   else {
        if (event.keyCode < 95) {
          
          if (event.keyCode < 48 || event.keyCode > 57) {
              if (event.keyCode >= 37 && event.keyCode <= 40) {  
               }
              else
              {
                event.preventDefault();
              }
          }
        } 
        else {
              if (event.keyCode < 96 || event.keyCode > 105) {
                  event.preventDefault();
              }
        }
      }
   });
});

Also read my related posts, which describe how to allow alphabets, numbers and specific characters.

Feel free to contact me for any help related to jQuery, I will gladly help you.