function checkForInt(evt) {
  var charCode = ( evt.which ) ? evt.which : event.keyCode;
  return (( charCode >= 48 && charCode <= 57 ) || (charCode <= 8));
}
/*
function CalculateTotal() {
  var TotalAmount = 0
  $('input[type=checkbox]').each(function(index) {
    if ($(this).prop("checked") == true) {
      var id = $(this).attr("id");
      var myform = id.split("_")[0];
      id = id.split("_")[1];
      id = id.replace("chkSize","");
      var Amount = $('#' + myform + '_txtSize' + id).val();
      var Price =  $('#price' + id).text();
      Price= Price.replace(",",".");
      if (Amount != "") {
        TotalAmount += parseInt(Amount) * parseFloat(Price);
      }
    }
  });
  $('#TotalAmount').text(parseFloat(TotalAmount).toFixed(2).replace(".",","));
}
*/
function CalculateTotal() {
  var TotalAmount = 0
  $('.txtSize').each(function(index) {
      var id = $(this).attr("id");
      id = id.split("_")[1];
      id = id.replace("txtSize","");
      var Amount = $(this).val();
      var Price =  $('#price' + id).text();
      Price= Price.replace(",",".");
      if (Amount != "") {
        TotalAmount += parseInt(Amount) * parseFloat(Price);
      }
  });
  $('#TotalAmount').text(parseFloat(TotalAmount).toFixed(2).replace(".",","));
}
function CalculateStaffel(Qty){
    var TotalAmount = 0
    $('.price').each(function(index) {
      var bulk = $(this).attr("id");
      bulk = bulk.split("_")[1];
      bulk = bulk.replace("txtSize","");
      if (parseInt(bulk) <= parseInt(Qty)) {
        TotalAmount = parseInt(Qty) * parseFloat($(this).text());
      }
  });
  $('#TotalAmount').text(parseFloat(TotalAmount).toFixed(2).replace(".",","));
}