$(function() {
         
    $("#testform .submit_btn:last-child").hide();
    // $("#tableOrderOverview #submit_btn:last-child").hide();
    // $("#submit_btn").hide();
    $("form span").append('<div class="inc button">+</div>');
    $("form span").prepend('<div class="dec button">-</div>');
    $(".button").click(function() {
        var $button = $(this);
        var oldValue = $button.parent().find("input").val();
    
        if ($button.text() == "+") {
    	  var newVal = parseFloat(oldValue) + 1;
    	  // AJAX save would go here
    	} else {
    	  // Don't allow decrementing below zero
    	  if (oldValue >= 1) {
    	      var newVal = parseFloat(oldValue) - 1;
    	      // AJAX save would go here
    	  }
    	}
    	$button.parent().find("input").val(newVal);
        $('#testform').submit();
    });

   $('#testform').change(function() {
        $('#testform').submit();
   });

});