function MaxLength(vObjectForm,vObject,vValue,vLabel,vLength) 
{
  var vObjectValue = "document." + vObjectForm + "." + vObject + ".value = vValue"
  var vObjectValueReset = "document." + vObjectForm + "." + vObject + ".value" + " = vValue.substr(0,vLength)"; 
  if (vValue.length > vLength)
  { 
   alert("You've exceeded the " + vLength + " characters allowed for " + vLabel);
   eval(vObjectValueReset);
  }
}