/*
Copyright (C) 2000-2010 Beyond SQL.com, Inc., Beyond SQL International, Inc.
$LastChangedRevision: 2 $
*/

function markInvalidElement(mField, mIsValid) {
	/* Just changes background color now */

	// retrieve original class
//	var oldClass = $(mField.name + "_class");

	if (mIsValid) {
	 mField.style.backgroundColor = "white";
		/*
		if (oldClass != null) {
			mField.className = oldClass.value;
			oldClass.removeNode(true);
		}
		*/
	} else {
		/*
		if (oldClass == null) {
			// store existing class
			var hidden = document.createElement("input");
			hidden.setAttribute("type", "hidden");
			hidden.setAttribute("name", mField.name + "_class");
			hidden.setAttribute("id", mField.name + "_class");
			hidden.setAttribute("value", mField.className);
			document.body.appendChild(hidden);
		}

		// set input's class to validation error class
		mField.className = "displayBodyValidationError";
		*/
	 mField.style.backgroundColor = "#dfe8f1";
	}
}

function validateImpossibleZero(form) {
	var isValid = true;
	var focusField = null;
	var i = fields.length;
	oRange = new impossibleZero();
	for (x in oRange) {
		var field = form[oRange[x][0]];

		if ((field.type == 'text' ||
			 field.type == 'textarea') &&
			(field.value.length > 0)) {

			var fValue = parseFloat(field.value);
			if (fValue == 0) {
				if (i == 0) {
					focusField = field;
				}
				fields[i++] = oRange[x][1];
				errorCount++;
				isValid = false;
				markInvalidElement(field, isValid);
			} else {
				markInvalidElement(field, true);
			}
		}
	}
	return isValid;
}

function validateUnlikelyZero(form) {
	var focusField = null;
	var i = fields.length;
	oRange = new unlikelyZero();
	for (x in oRange) {
		var field = form[oRange[x][0]];

		if ((field.type == 'text' ||
			 field.type == 'textarea') &&
			(field.value.length > 0)) {

			var fValue = parseFloat(field.value);
			if (fValue == 0) {
				if (i == 0) {
					focusField = field;
				}
				fields[i++] = oRange[x][1];
				// do NOT increment error count, this is just a warning
			}
		}
	}
	return true;
}

function validateFloatRange(form) {
	var isValid = true;
	var focusField = null;
	var i = fields.length;
	oRange = new floatRange();
	for (x in oRange) {
		var field = form[oRange[x][0]];

		if ((field.type == 'text' ||
			 field.type == 'textarea') &&
			(field.value.length > 0)) {

			var fMin = parseFloat(oRange[x][2]("min"));
			var fMax = parseFloat(oRange[x][2]("max"));
			var fValue = parseFloat(field.value);
			if (!(fValue >= fMin && fValue <= fMax)) {
				if (i == 0) {
					focusField = field;
				}
				fields[i++] = oRange[x][1];
				errorCount++;
				isValid = false;
				markInvalidElement(field, isValid);
			} else {
				markInvalidElement(field, true);
			}
		}
	}
	return isValid;
}

function validateByte(form) {
	var bValid = true;
	var focusField = null;
	var i = fields.length;
	oByte = new ByteValidations();
	for (x in oByte) {
		var field = form[oByte[x][0]];

		if (field.type == 'text' ||
			field.type == 'textarea' ||
			field.type == 'select-one' ||
			field.type == 'radio') {

			var value = '';
			// get field's value
			if (field.type == "select-one") {
				var si = field.selectedIndex;
				if (si >= 0) {
					value = field.options[si].value;
				}
			} else {
				value = field.value;
			}

			if (value.length > 0) {
				if (!isAllDigits(value)) {
					bValid = false;
					if (i == 0) {
						focusField = field;
					}
					fields[i++] = oByte[x][1];
					errorCount++;

				} else {

					var iValue = parseInt(value);
					if (isNaN(iValue) || !(iValue >= -128 && iValue <= 127)) {
						if (i == 0) {
							focusField = field;
						}
						fields[i++] = oByte[x][1];
						errorCount++;
						bValid = false;
					}
				}
			}

		}
	}
	return bValid;
}

function validateMaxLength(form) {
	var isValid = true;
	var focusField = null;
	var i = fields.length;
	oMaxLength = new maxlength();
	for (x in oMaxLength) {
		var field = form[oMaxLength[x][0]];

		if (field.type == 'text' ||
			field.type == 'textarea') {

			var iMax = parseInt(oMaxLength[x][2]("maxlength"));
			if (field.value.length > iMax) {
				if (i == 0) {
					focusField = field;
				}
				fields[i++] = oMaxLength[x][1];
				errorCount++;
				isValid = false;
			}
		}
	}
	return isValid;
}
/* Modified by TF 21-Jan-2007 to work for radio with > 1 choice */
function validateRequired(form) {
	var isValid = true;
	var focusField = null;
	var i = fields.length;
	oRequired = new required();
	for (x in oRequired) {
		var field = form[oRequired[x][0]];
		var fType = field.type;

		if ((fType == undefined) && (field.length > 1)) {
			fType = 'radio';
		}
		if (fType == 'text' ||
			fType == 'textarea' ||
			fType == 'file' ||
			fType == 'select-one' ||
			fType == 'radio' ||
			fType == 'password') {

			var value = '';
			// get field's value
			if (fType == "select-one") {
				var si = field.selectedIndex;
				if (si >= 0) {
					value = field.options[si].value;
				}
			} else if (fType == 'radio') {
				var idx = 0;
				var isChecked = false;
				while ((idx < field.length) && !isChecked) {
					isChecked = field[idx].checked;
					idx++;
				}
				if (isChecked) {
					value = field[idx - 1].value;
				}
			} else {
				value = field.value;
			}

			if (trim(value).length == 0) {

				if (i == 0) {
					focusField = field;
				}
				fields[i++] = oRequired[x][1];
				errorCount++;
				isValid = false;
				markInvalidElement(field, isValid);
			} else {
				markInvalidElement(field, true);
			}
		} else {
		}
	}
	return isValid;
}

// Trim whitespace from left and right sides of s.
function trim(s) {
	return s.replace( /^\s*/, "" ).replace( /\s*$/, "" );
}

function validateInteger(form) {
	var bValid = true;
	var focusField = null;
	var i = fields.length;
	oInteger = new IntegerValidations();
	for (x in oInteger) {
		var field = form[oInteger[x][0]];

		if (field.type == 'text' ||
			field.type == 'textarea' ||
			field.type == 'select-one' ||
			field.type == 'radio') {

			var value = '';
			// get field's value
			if (field.type == "select-one") {
				var si = field.selectedIndex;
				if (si >= 0) {
					value = field.options[si].value;
				}
			} else {
				value = field.value;
			}

			if (value.length > 0) {

				if (!isAllDigits(value)) {
					bValid = false;
					if (i == 0) {
						focusField = field;
					}
					fields[i++] = oInteger[x][1];
					errorCount++;

				} else {
					var iValue = parseInt(value);
					if (isNaN(iValue) || !(iValue >= -2147483648 && iValue <= 2147483647)) {
						if (i == 0) {
							focusField = field;
						}
						fields[i++] = oInteger[x][1];
						errorCount++;
						bValid = false;
				   }
			   }
		   }
		}
	}
	return bValid;
}

function isAllDigits(argvalue) {
	argvalue = argvalue.toString();
	var validChars = "0123456789";
	var startFrom = 0;
	if (argvalue.substring(0, 2) == "0x") {
	   validChars = "0123456789abcdefABCDEF";
	   startFrom = 2;
	} else if (argvalue.charAt(0) == "0") {
	   validChars = "01234567";
	   startFrom = 1;
	} else if (argvalue.charAt(0) == "-") {
		startFrom = 1;
	}

	for (var n = startFrom; n < argvalue.length; n++) {
		if (validChars.indexOf(argvalue.substring(n, n+1)) == -1) return false;
	}
	return true;
}

function validateRange(form) {
	return validateIntRange(form);
}

function validateCreditCard(form) {
	var bValid = true;
	var focusField = null;
	var i = fields.length;
	oCreditCard = new creditCard();
	for (x in oCreditCard) {
		if ((form[oCreditCard[x][0]].type == 'text' ||
			 form[oCreditCard[x][0]].type == 'textarea') &&
			(form[oCreditCard[x][0]].value.length > 0)) {
			if (!luhnCheck(form[oCreditCard[x][0]].value)) {
				if (i == 0) {
					focusField = form[oCreditCard[x][0]];
				}
				fields[i++] = oCreditCard[x][1];
				errorCount++;
				bValid = false;
			}
		}
	}
	return bValid;
}

/**
 * Reference: http://www.ling.nwu.edu/~sburke/pub/luhn_lib.pl
 */
function luhnCheck(cardNumber) {
	if (isLuhnNum(cardNumber)) {
		var no_digit = cardNumber.length;
		var oddoeven = no_digit & 1;
		var sum = 0;
		for (var count = 0; count < no_digit; count++) {
			var digit = parseInt(cardNumber.charAt(count));
			if (!((count & 1) ^ oddoeven)) {
				digit *= 2;
				if (digit > 9) digit -= 9;
			};
			sum += digit;
		};
		if (sum == 0) return false;
		if (sum % 10 == 0) return true;
	};
	return false;
}

function isLuhnNum(argvalue) {
	argvalue = argvalue.toString();
	if (argvalue.length == 0) {
		return false;
	}
	for (var n = 0; n < argvalue.length; n++) {
		if ((argvalue.substring(n, n+1) < "0") ||
			(argvalue.substring(n,n+1) > "9")) {
			return false;
		}
	}
	return true;
}

function validateDate(form) {
   var bValid = true;
   var focusField = null;
   var i = fields.length;
   oDate = new DateValidations();
   for (x in oDate) {
	   var value = form[oDate[x][0]].value;
	   var datePattern = oDate[x][2]("datePatternStrict");
	   if ((form[oDate[x][0]].type == 'text' ||
			form[oDate[x][0]].type == 'textarea') &&
		   (value.length > 0) &&
		   (datePattern.length > 0)) {
		 var MONTH = "MM";
		 var DAY = "dd";
		 var YEAR = "yyyy";
		 var orderMonth = datePattern.indexOf(MONTH);
		 var orderDay = datePattern.indexOf(DAY);
		 var orderYear = datePattern.indexOf(YEAR);
		 if ((orderDay < orderYear && orderDay > orderMonth)) {
			 var iDelim1 = orderMonth + MONTH.length;
			 var iDelim2 = orderDay + DAY.length;
			 var delim1 = datePattern.substring(iDelim1, iDelim1 + 1);
			 var delim2 = datePattern.substring(iDelim2, iDelim2 + 1);
			 if (iDelim1 == orderDay && iDelim2 == orderYear) {
				dateRegexp = new RegExp("^(\\d{2})(\\d{2})(\\d{4})$");
			 } else if (iDelim1 == orderDay) {
				dateRegexp = new RegExp("^(\\d{2})(\\d{2})[" + delim2 + "](\\d{4})$");
			 } else if (iDelim2 == orderYear) {
				dateRegexp = new RegExp("^(\\d{2})[" + delim1 + "](\\d{2})(\\d{4})$");
			 } else {
				dateRegexp = new RegExp("^(\\d{2})[" + delim1 + "](\\d{2})[" + delim2 + "](\\d{4})$");
			 }
			 var matched = dateRegexp.exec(value);
			 if(matched != null) {
				if (!isValidDate(matched[2], matched[1], matched[3])) {
				   if (i == 0) {
					   focusField = form[oDate[x][0]];
				   }
				   fields[i++] = oDate[x][1];
				   errorCount++;
				   bValid =  false;
				}
			 } else {
				if (i == 0) {
					focusField = form[oDate[x][0]];
				}
				fields[i++] = oDate[x][1];
				errorCount++;
				bValid =  false;
			 }
		 } else if ((orderMonth < orderYear && orderMonth > orderDay)) {
			 var iDelim1 = orderDay + DAY.length;
			 var iDelim2 = orderMonth + MONTH.length;
			 var delim1 = datePattern.substring(iDelim1, iDelim1 + 1);
			 var delim2 = datePattern.substring(iDelim2, iDelim2 + 1);
			 if (iDelim1 == orderMonth && iDelim2 == orderYear) {
				 dateRegexp = new RegExp("^(\\d{2})(\\d{2})(\\d{4})$");
			 } else if (iDelim1 == orderMonth) {
				 dateRegexp = new RegExp("^(\\d{2})(\\d{2})[" + delim2 + "](\\d{4})$");
			 } else if (iDelim2 == orderYear) {
				 dateRegexp = new RegExp("^(\\d{2})[" + delim1 + "](\\d{2})(\\d{4})$");
			 } else {
				 dateRegexp = new RegExp("^(\\d{2})[" + delim1 + "](\\d{2})[" + delim2 + "](\\d{4})$");
			 }
			 var matched = dateRegexp.exec(value);
			 if(matched != null) {
				 if (!isValidDate(matched[1], matched[2], matched[3])) {
					 if (i == 0) {
						 focusField = form[oDate[x][0]];
					 }
					 fields[i++] = oDate[x][1];
					 errorCount++;
					 bValid =  false;
				  }
			 } else {
				 if (i == 0) {
					 focusField = form[oDate[x][0]];
				 }
				 fields[i++] = oDate[x][1];
				 errorCount++;
				 bValid =  false;
			 }
		 } else if ((orderMonth > orderYear && orderMonth < orderDay)) {
			 var iDelim1 = orderYear + YEAR.length;
			 var iDelim2 = orderMonth + MONTH.length;
			 var delim1 = datePattern.substring(iDelim1, iDelim1 + 1);
			 var delim2 = datePattern.substring(iDelim2, iDelim2 + 1);
			 if (iDelim1 == orderMonth && iDelim2 == orderDay) {
				 dateRegexp = new RegExp("^(\\d{4})(\\d{2})(\\d{2})$");
			 } else if (iDelim1 == orderMonth) {
				 dateRegexp = new RegExp("^(\\d{4})(\\d{2})[" + delim2 + "](\\d{2})$");
			 } else if (iDelim2 == orderDay) {
				 dateRegexp = new RegExp("^(\\d{4})[" + delim1 + "](\\d{2})(\\d{2})$");
			 } else {
				 dateRegexp = new RegExp("^(\\d{4})[" + delim1 + "](\\d{2})[" + delim2 + "](\\d{2})$");
			 }
			 var matched = dateRegexp.exec(value);
			 if(matched != null) {
				 if (!isValidDate(matched[3], matched[2], matched[1])) {
					 if (i == 0) {
						 focusField = form[oDate[x][0]];
					  }
					  fields[i++] = oDate[x][1];
					  errorCount++;
					  bValid =  false;
				  }
			  } else {
				  if (i == 0) {
					  focusField = form[oDate[x][0]];
				  }
				  fields[i++] = oDate[x][1];
				  errorCount++;
				  bValid =  false;
			  }
		 } else {
			 if (i == 0) {
				 focusField = form[oDate[x][0]];
			 }
			 fields[i++] = oDate[x][1];
			 errorCount++;
			 bValid =  false;
		 }
	  }
   }
   return bValid;
}

function isValidDate(day, month, year) {
	if (month < 1 || month > 12) {
		return false;
	}
	if (day < 1 || day > 31) {
		return false;
	}
	if ((month == 4 || month == 6 || month == 9 || month == 11) &&
		(day == 31)) {
		return false;
	}
	if (month == 2) {
		var leap = (year % 4 == 0 &&
				   (year % 100 != 0 || year % 400 == 0));
		if (day>29 || (day == 29 && !leap)) {
			return false;
		}
	}
	return true;
}

function validateIntRange(form) {
	var isValid = true;
	var focusField = null;
	var i = fields.length;
	oRange = new intRange();
	for (x in oRange) {
		var field = form[oRange[x][0]];

		if ((field.type == 'text' ||
			 field.type == 'textarea') &&
			(field.value.length > 0)) {

			var iMin = parseInt(oRange[x][2]("min"));
			var iMax = parseInt(oRange[x][2]("max"));
			var iValue = parseInt(field.value);
			if (!(iValue >= iMin && iValue <= iMax)) {
				if (i == 0) {
					focusField = field;
				}
				fields[i++] = oRange[x][1];
				errorCount++;
				isValid = false;
			}
		}
	}
	return isValid;
}

function validateShort(form) {
	var bValid = true;
	var focusField = null;
	var i = fields.length;
	oShort = new ShortValidations();
	for (x in oShort) {
		var field = form[oShort[x][0]];

		if (field.type == 'text' ||
			field.type == 'textarea' ||
			field.type == 'select-one' ||
			field.type == 'radio') {

			var value = '';
			// get field's value
			if (field.type == "select-one") {
				var si = field.selectedIndex;
				if (si >= 0) {
					value = field.options[si].value;
				}
			} else {
				value = field.value;
			}

			if (value.length > 0) {
				if (!isAllDigits(value)) {
					bValid = false;
					if (i == 0) {
						focusField = field;
					}
					fields[i++] = oShort[x][1];
					errorCount++;

				} else {

					var iValue = parseInt(value);
					if (isNaN(iValue) || !(iValue >= -32768 && iValue <= 32767)) {
						if (i == 0) {
							focusField = field;
						}
						fields[i++] = oShort[x][1];
						errorCount++;
						bValid = false;
					}
			   }
		   }
		}
	}
	return bValid;
}

function validateFloat(form) {
	var bValid = true;
	var focusField = null;
	var i = fields.length;
	oFloat = new FloatValidations();
	for (x in oFloat) {
		var field = form[oFloat[x][0]];

		if (field.type == 'text' ||
			field.type == 'textarea' ||
			field.type == 'select-one' ||
			field.type == 'radio') {

			var value = '';
			// get field's value
			if (field.type == "select-one") {
				var si = field.selectedIndex;
				if (si >= 0) {
					value = field.options[si].value;
				}
			} else {
				value = field.value;
			}

			if (value.length > 0) {
				// remove '.' before checking digits
				var tempArray = value.split('.');
				var joinedString= tempArray.join('');

				if (!isAllDigits(joinedString)) {
					bValid = false;
					if (i == 0) {
						focusField = field;
					}
					fields[i++] = oFloat[x][1];
					errorCount++;

				} else {
					var iValue = parseFloat(value);
					if (isNaN(iValue)) {
						if (i == 0) {
							focusField = field;
						}
						fields[i++] = oFloat[x][1];
						errorCount++;
						bValid = false;
					}
				}
			}
		}
	}
	return bValid;
}

function validateEmail(form) {
	var bValid = true;
	var focusField = null;
	var i = fields.length;
	oEmail = new email();
	for (x in oEmail) {
		var field = form[oEmail[x][0]];
		if ((form[oEmail[x][0]].type == 'text' ||
			 form[oEmail[x][0]].type == 'textarea') &&
			(form[oEmail[x][0]].value.length > 0)) {
			if (!checkEmail(form[oEmail[x][0]].value)) {
				if (i == 0) {
					focusField = form[oEmail[x][0]];
				}
				fields[i++] = oEmail[x][1];
				errorCount++;
				bValid = false;
				markInvalidElement(field, bValid);
			} else {
				markInvalidElement(field, true);
			}
		}
	}
	return bValid;
}

/**
 * Reference: Sandeep V. Tamhankar (stamhankar@hotmail.com),
 * http://javascript.internet.com
 */
function checkEmail(emailStr) {
   if (emailStr.length == 0) {
	   return true;
   }
   var emailPat=/^(.+)@(.+)$/;
   var specialChars="\\(\\)<>@,;:\\\\\\\"\\.\\[\\]";
   var validChars="\[^\\s" + specialChars + "\]";
   var quotedUser="(\"[^\"]*\")";
   var ipDomainPat=/^(\d{1,3})[.](\d{1,3})[.](\d{1,3})[.](\d{1,3})$/;
   var atom=validChars + '+';
   var word="(" + atom + "|" + quotedUser + ")";
   var userPat=new RegExp("^" + word + "(\\." + word + ")*$");
   var domainPat=new RegExp("^" + atom + "(\\." + atom + ")*$");
   var matchArray=emailStr.match(emailPat);
   if (matchArray == null) {
	   return false;
   }
   var user=matchArray[1];
   var domain=matchArray[2];
   if (user.match(userPat) == null) {
	   return false;
   }
   var IPArray = domain.match(ipDomainPat);
   if (IPArray != null) {
	   for (var i = 1; i <= 4; i++) {
		  if (IPArray[i] > 255) {
			 return false;
		  }
	   }
	   return true;
   }
   var domainArray=domain.match(domainPat);
   if (domainArray == null) {
	   return false;
   }
   var atomPat=new RegExp(atom,"g");
   var domArr=domain.match(atomPat);
   var len=domArr.length;
   if ((domArr[domArr.length-1].length < 2) ||
	   (domArr[domArr.length-1].length > 3)) {
	   return false;
   }
   if (len < 2) {
	   return false;
   }
   return true;
}

function validateMask(form) {
	var isValid = true;
	var focusField = null;
	var i = fields.length;
	oMasked = new mask();
	for (x in oMasked) {
		var field = form[oMasked[x][0]];

		if ((field.type == 'text' ||
			 field.type == 'textarea') &&
			 (field.value.length > 0)) {

			if (!matchPattern(field.value, oMasked[x][2]("mask"))) {
				if (i == 0) {
					focusField = field;
				}
				fields[i++] = oMasked[x][1];
				errorCount++;
				isValid = false;
			}
		}
	}
	return isValid;
}

function matchPattern(value, mask) {
   return mask.exec(value);
}

function validateMinLength(form) {
	var isValid = true;
	var focusField = null;
	var i = fields.length;
	oMinLength = new minlength();
	for (x in oMinLength) {
		var field = form[oMinLength[x][0]];

		if (field.type == 'text' ||
			field.type == 'textarea') {

			var iMin = parseInt(oMinLength[x][2]("minlength"));
			if ((trim(field.value).length > 0) && (field.value.length < iMin)) {
				if (i == 0) {
					focusField = field;
				}
				fields[i++] = oMinLength[x][1];
				errorCount++;
				isValid = false;
			}
		}
	}
	return isValid;
}