jquery only allow input float number

Question

i\'m making some input mask that allows only float number. But current problem is I can\'t check if multiple dots entered. Can you check those dots and prevent it for me?

Answer 1

$('.number').keypress(function(event){
            if($.browser.mozilla == true){
                  if (event.which == 8 || event.keyCode == 37 || event.keyCode == 39 || event.keyCode == 9 || event.keyCode == 16 || event.keyCode == 46){
                        return true;
                  }
            }
            if ((event.which != 46 || $(this).val().indexOf('.') != -1) && (event.which < 48 || event.which > 57)) {
                event.preventDefault();
              }
                });

This works in all browsers.