var num;

function checkNumber(number)
{
  num=number.name;
  if (isNaN(document.all.item(num).value))
  {
   var message=document.all.item("numeric_error").value;
  // var sFeatures = getDialogFeatures(1);
   //window.showModalDialog("javaScripts/Message.htm", message,
   //   sFeatures);
   alert(message);
   document.all.item(num).value="";
   document.all.item(num).focus();
   return false;
  }
  return true;
}

function getDialogFeatures(count)
{
  var height = (count*75)+100;
  var sFeatures="dialogHeight: "+height+"px;";
  sFeatures=sFeatures+"dialogWidth: 400px;";
  sFeatures=sFeatures+"status: No;";
  sFeatures=sFeatures+"scroll: No;";
  sFeatures=sFeatures+"help: No;";
  return sFeatures;
}

function checkNumberMax(number, max)
{
 num=number.name;
 if (eval(document.all.item(num).value) > max)
  {
   var message=document.all.item("number_too_large_error").value;
   alert(message);
   document.all.item(num).value="";
   document.all.item(num).focus();
  }
}