// $Id: fieldvalidate.js,v 1.16 2006/05/03 18:05:28 jseverson Exp $ // // $Log: fieldvalidate.js,v $ // Revision 1.16 2006/05/03 18:05:28 jseverson // Setting language variable from get parameter if present. // // Revision 1.15 2006/03/28 00:01:50 jseverson // fixing php errors // // Revision 1.14 2006/03/22 19:16:00 jseverson // Adding multi language support for alerts // // Revision 1.13 2006/02/25 00:53:22 jreed // Added isNumeric() validation function // // Revision 1.12 2004/11/23 21:49:14 dsimon // Bug 4925, calling objFld.select() after alert to prevent button from staying depressed // // Revision 1.11 2004/11/19 19:27:36 dsimon // Bug 4925, added param to checkField() to clear out field // // Revision 1.10 2004/08/04 18:01:28 jreed // Added validation for credit card id // // Revision 1.9 2004/08/03 19:25:38 jreed // Modified checkfield to select the invalid value rather than blanking it // Also, do select before alert // // Revision 1.8 2004/06/23 17:04:37 jseverson // Minor changes but editor converted tabs to spaces // // Revision 1.7 2002/07/12 00:34:38 vhegde // cleared value of credit card field // // Revision 1.6 2002/07/10 01:48:28 vhegde // added credit card validation function // // Revision 1.5 2002/03/31 21:32:29 jneil // Added reference to isSsn function. // // Revision 1.4 2002/02/20 18:42:46 nwiggins // // # removes script tags - forces usage as a javascript src include. no php includes // // Revision 1.3 2001/07/18 23:07:57 jneil // Fixed some problems. // // Revision 1.2 2001/07/02 06:11:18 vhegde // Revision 1.1 2001/05/21 15:53:53 jneil // Initial Upload. // // /********************************************************************** Depends on: alltrim(), isEmpty(), replaceall() functions of string.js library isFloat(), isDigit(), isZipcode() isSsn() functions of ctype.js library NOTE: -- always alltrim field value before calling any of these functions -- if field is empty, the function call will return true **********************************************************************/ function checkField(objFld, strType, clearField) { objFld.value = alltrim(objFld.value); if (isEmpty(objFld.value)) return true; // Remove commas from Integer and Float fields if ((strType == "Integer") || (strType == "Float")) objFld.value = replaceall(objFld.value, ",", ""); if ((strType == "Digit") && !isDigit(objFld.value)) { if(clearField){ objFld.value = ""; } alert("Please enter a response in numerical format (please exclude dollar signs, commas, parenthesis or any other non-numeric symbols)."); objFld.select(); return false; } if (strType == "Integer") if (!isInteger(parseInt(objFld.value))) { if(clearField){ objFld.value = ""; } alert("Please enter a response in numerical format (please exclude dollar signs, commas, parenthesis or any other non-numeric symbols)."); objFld.select(); return false; } else objFld.value = parseInt(objFld.value); if (strType == "Float") if (!isFloat(parseFloat(objFld.value))) { if(clearField){ objFld.value = ""; } alert("Please enter a response in numerical format (please exclude dollar signs, commas, parenthesis or any other non-numeric symbols)."); objFld.select(); return false; } else objFld.value = parseFloat(objFld.value); if (strType == "ZIP") if (!isZipcode(objFld.value)) { if(clearField){ objFld.value = ""; } alert("Please enter valid zip code value"); objFld.select(); return false; } if (strType == "Date") if (!isDate(objFld.value)) { if(clearField){ objFld.value = ""; } alert("Please enter valid date value (MM/DD/YYYY)"); objFld.select(); return false; } if (strType == "DatePartYear" && checkField(objFld, "Digit")) { if (!isDatePart(objFld.value, "Year")) { if(clearField){ objFld.value = ""; } alert("Please enter valid year value"); objFld.select(); return false; } else if (objFld.value < 100) objFld.value = (objFld.value < 50 ? 2000:1900) + parseInt(objFld.value); } if (strType == "CreditCard") { if (!validate_card(objFld.value)) { if(clearField){ objFld.value = ""; } alert("Please enter a valid credit card number"); objFld.select(); return false; } } if (strType == "CreditCardId") { if (!validate_card_code(objFld.value)) { if(clearField){ objFld.value = ""; } alert("Please enter a valid credit card id."); objFld.select(); return false; } } validate_card_code return true; } /******************************************************************************* checkRange: Check the range of field value. Parameters: objFld - Field reference strType - "Inclusive" = include boundary values - "Exclusive" = exclude boundary values - "LeftInclusive" = include only left boundary value - "RightInclusive" = include only right boundary value *********************************************************************************/ function checkRange(objFld, fLower, fUpper, strType) { var fVal = 0.0; if (isEmpty(objFld.value)) return true; if (!isFloat(objFld.value)) return false; fVal = parseFloat(objFld.value); if ((strType == "Inclusive") && (fVal >= fLower) && (fVal <= fUpper)) return true; else if ((strType == "Exclusive") && (fVal > fLower) && (fVal < fUpper)) return true; else if ((strType == "LeftInclusive") && (fVal >= fLower) && (fVal < fUpper)) return true; else if ((strType == "RightInclusive") && (fVal > fLower) && (fVal <= fUpper)) return true; alert('Value should be between ' + fLower + ' and ' + fUpper + ''); objFld.value = ""; objFld.focus(); return false; } /************************************************************ checkLength: Check the length of the field value. Useful for fields like TEXTAREA where MAXLENGTH attribute is not available Parameters: objFld - Field reference ************************************************************/ function checkLength(objFld, nLen) { var strVal = new String(objFld.value); if (strVal.length > nLen) { alert('Maximum length allowed is ' + nLen + ' characters. Value has been truncated to the size of ' + nLen + '.'); objFld.value = strVal.substring(0, nLen); objFld.focus(); return false; } return true; } function validate_card(cardnum) { var re = new RegExp("[^0-9]", "g"); cardnum = cardnum.replace(re, ""); var cardname = "Invalid Card"; var len_req = 0; if (cardnum.substring(0, 3) >= "300" && cardnum.substring(0, 3) <= "305") { cardname = "Diners Club"; } if (cardnum.substring(0, 2) == "36") { cardname = "Diners Club"; } if (cardnum.substring(0, 4) >= "3800" && cardnum.substring(0, 4) <= "3889") { cardname = "Diners Club"; } if (cardnum.substring(0, 2) == "34") { cardname = "American Express"; } if (cardnum.substring(0, 2) == "37") { cardname = "American Express"; } if (cardnum.substring(0, 4) >= "3528" && cardnum.substring(0, 4) <= "3589") { cardname = "JCB"; } if (cardnum.substring(0, 3) == "389") { cardname = "Carte Blanche"; } if (cardnum.substring(0, 1) == "4") { cardname = "Visa"; } if (cardnum.substring(0, 2) >= "51" && cardnum.substring(0, 2) <= "55") { cardname = "MasterCard"; } if (cardnum.substring(0, 4) == "5610") { cardname = "Australian BankCard"; } if (cardnum.substring(0, 4) == "6011") { cardname = "Discover/Novus"; } switch (cardname) { case "Diners Club": case "Carte Blanche": len_req = 14; break; case "American Express": len_req = 15; break; case "JCB": case "MasterCard": case "Discover/Novus": len_req = 16; break; case "Visa": len_req = 16; if (cardnum.length < 14) len_req = 13; break; default: return false; } if (cardnum.length != len_req) return false; var checksum = 0; for (i = 1 - (cardnum.length % 2); i < cardnum.length; i += 2) { checksum += parseInt(cardnum.substr(i, 1)); } for (i = (cardnum.length % 2); i < cardnum.length; i += 2) { if (cardnum.substr(i, 1) < 5) { checksum += parseInt(cardnum.substr(i, 1))*2; } else { checksum += parseInt(cardnum.substr(i, 1))*2 - 9; } } return (checksum % 10 == 0); } function validate_card_code(s) { var i; for (i = 0; i < s.length; i++) { var c = s.charAt(i); if (((c < "0") || (c > "9"))) return false; } return true; } function isNumeric(objText) { sText = objText.value; var ValidChars = "0123456789."; var Char; for (i = 0; i < sText.length; i++) { Char = sText.charAt(i); if (ValidChars.indexOf(Char) == -1) { alert('Please enter a valid number'); objText.select(); objText.focus(); return false; } } return true; }
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