Another nice one I use. This has several functions.
function custRound(x,places){
return (Math.round(x*Math.pow(10,places)))/Math.pow(10,places)
}
function emailValidate(email, isRequired ){
var required
if( isRequired != null )
required = isRequired;
else
required = "YES";
email.value = f_trimmer( email.value );
if ( ( email.value == "" ) &&
( required.toUpperCase() == "YES" ) ){
alert("You Must enter an email address");
email.select();
email.focus();
return false;
}
if ( ( ( email.value.indexOf("@") == -1 ) ||
( email.value.indexOf(".") == -1 ) ||
( email.value.indexOf(" ") != -1 ) ) &&
( email.value != "" ) ){
alert( "\"" + email.value + "\"" + " is not a valid email address." );
return false;
}else
return true;
}
function f_trimmer(thisstring){
while(thisstring.charAt(0)==" "){
thisstring=thisstring.substring(1,thisstring.length)
}
thisstring=r_trimmer(thisstring)
return thisstring
}
function r_trimmer(thisstring){
while(thisstring.charAt(thisstring.length-1)==" "){
thisstring=thisstring.substring(0,(thisstring.length-1))
}
return thisstring
}
function checkForValue(number,exponent){
var pnumber = number * 1;
if (!pnumber && pnumber != 0){
return -1;
}
if((exponent == 0) && (pnumber >= 0))
return 0;
//var result = pnumber / Math.pow(10,(exponent-1));
//alert(result);
if ((pnumber / Math.pow(10,(exponent-1))) < 1)
return 1;
return 0;
}
function valNumProp(formField,exponent,fildName){
var exponentError = "You Must Enter " + exponent + " digit(s).";
var trimError = "You must enter a value";
var NaNError = "Letters and Spaces are not Allowed.";
//trim space check
formField.value = f_trimmer(formField.value);
if(formField.value == ""){
alert("Error Validating " + fildName + ":\n" + trimError);
formField.focus();
return false;
}
//return check For value error
var err = checkForValue(formField.value,exponent);
//check for NaN error
if (err == -1){
alert("Error Validating " + fildName + ":\n" + NaNError);
formField.focus();
return false;
}
//check for number of digits error
if (err == 1){
alert("Error Validating " + fildName + ":\n" + exponentError);
formField.focus();
return false;
}
return true;
}
function evaluate_Number_Element(element,formField,elementName,exponent){
var exponentError = "You Must Enter " + exponent + " digit(s).";
var trimError = "You must enter a value";
var NaNError = "Letters and Spaces are not Allowed.";
//trim space check
element = f_trimmer(element);
if(element == ""){
alert("Error Validating " + elementName + ":\n" + trimError);
formField.focus();
return false;
}
//return check For value error
var err = checkForValue(element,exponent);
//check for NaN error
if (err == -1){
alert("Error Validating " + elementName + ":\n" + NaNError);
formField.focus();
return false;
}
//check for number of digits error
if (element.length != exponent && exponent != 0 ){
alert("Error Validating " + elementName + ":\n" + exponentError);
formField.focus();
return false;
}
return true;
}
function textValidate(field,fieldName,defaultSetting){//default setting is
help info preloaded into field
field.value = f_trimmer(field.value); //will return error if
value has not been changed by EU
error = 0;
if(defaultSetting != null){
if(field.value == f_trimmer(defaultSetting))
error = 1;
}
if(field.value == '')
error = 1;
if(error == 1 && fieldName != "noError"){
alert("You must enter a " + fieldName);
field.select();
field.focus();
return false;
}
if(error == 1){
return false;
}
else
return true;
}
function setMatch(optionList,searchText){
var matchFound = false;
var optionLength = optionList.length;
var item;
for (var i=0; i < optionLength; i++){
item = optionList.options[i].value.toUpperCase();
if (item == searchText.toUpperCase()){
optionList.options[i].selected = true;
matchFound = true;
break;
}
}
if(matchFound == false){
optionList.options[0].selected = true;
}
}
function selectValidateMatch(optionList,compareValue,message){
if(optionList.options[optionList.selectedIndex].value.toUpperCase() !=
compareValue.toUpperCase() ){
if(message != null)
alert(message);
optionList.focus();
return false;
}
return true;
}
function selectValidate(optionList,fieldName,showError){
if(optionList.options[optionList.selectedIndex].value == "none"){
if(fieldName != "none")
alert("You must select a " + fieldName);
optionList.focus();
return false;
}
return true;
}
function trimField(field){
field.value = f_trimmer(field.value);
}
function dateValidate( dateIn, fieldName ){
if( textValidate( dateIn, fieldName ) == false )
return 2;//return 2 if null field
var dateField = dateIn.value;//all ready trimmed from textValidate
var leftStringStart = 0;
var i = 0;
var n = 0;
var datePart = new Array();
while(i != dateField.length){
character = dateField.charAt(i);
if( character == "." || character == "/" || character == "-"){
datePart[n] = dateField.substring(leftStringStart,i);
leftStringStart = i + 1;
n++;
}
else{
if(character == " "){
alert("please remove all spaces from date field");
dateIn.focus();
return 1;
}
if( ( character != "0" ) && ( !parseInt( character ) ) ){
alert("\"" + character + "\" is not a valid character for a date
value\n Mask = \"mm/dd/yy(yy)\"");
dateIn.focus();
return 1;
}
}
i++;
}
datePart[n] = dateField.substring(leftStringStart,i);
if( n != 2){
alert( "Can't parse string to Date\n Mask = \"mm/dd/yy(yy)\"" );
dateIn.focus();
return 1;
}
//check month range
if(datePart[0].charAt(0) == "0")//fix for leading 0 bug
datePart[0] = datePart[0].substring(1,2);
if( datePart[0].length != 1 && datePart[0].length != 2 ){
alert( "Month Value must be 1 or 2 digits" );
dateIn.focus();
return 1;
}
n = parseInt( datePart[0] );
if ( n < 1 || n > 12 ){
alert( "month value \"" + n + "\"out of range");
dateIn.focus();
return 1;
}
//check day range
if(datePart[1].charAt(0) == "0")// fix for leading 0 bug
datePart[1] = datePart[1].substring(1,2);
if( datePart[1].length != 1 && datePart[1].length != 2 ){
alert( "Day Value must be 1 or 2 digits" );
dateIn.focus();
return 1;
}
n = parseInt( datePart[1] );
if ( n < 1 || n > 31 ){
alert( "day value \"" + n + "\"out of range");
dateIn.focus();
return 1;
}
//check year range
if( datePart[2].length != 2 && datePart[2].length != 4 ){
alert( "Year Value must be 2 or 4 digits" );
dateIn.focus();
return 1;
}
if(datePart[2].charAt(0) == "0")//fix for leading 0 bug
datePart[2] = datePart[2].substring(1,2);
n = parseInt( datePart[2] );
if( n < 50 )
n += 2000;
if( n < 100 )
n += 1900;
if( n < 1950 ){
alert( "Year in date value out of range");
dateIn.focus();
return 1;
}
if( n > 2050 ){
alert( "Year in date value out of range");
dateIn.focus();
return 1;
}
var dateString = datePart[0] + "/" + datePart[1] + "/" + n;
var validationDate = new Date(dateString);
if ( parseInt( datePart[1] ) != validationDate.getDate() ){
alert( "Day value out of range for this month and year" );
dateIn.focus();
return 1;
}
dateIn.value = dateString;
return 0;
}
function moneyValidate(field,fieldName){
field.value = f_trimmer(field.value);
if( field.value == "" ){
if(fieldName != "noError"){
alert( "You must enter a " + fieldName );
field.focus();
}
return 2;
}
var wMoney = field.value;
var i = 0;
var rMoney = "";
var err = 0;
var n = 0;
var wChar = "";
for(i;i < wMoney.length;i++){
wChar = wMoney.charAt(i);
if( wChar == " " ){
alert("Please Remove all spaces from money field");
field.focus();
return 1;
}
if( ( parseInt( wChar ) ) || ( wChar == 0 ) ){
rMoney = rMoney + wChar;
continue;
}
if( ( i == 0 ) && ( wChar == "$" ) ){
continue;
}
if( ( wChar == "," ) && ( n == 0 ) )
continue;
if( ( wChar == "." ) && ( n == 0 ) ){
n = i;
rMoney = rMoney + wChar;
continue;
}
if( ( wChar == ".") ){
alert( "Too many decimal points in Money Field Please fix and
resubmit");
field.focus();
return 1;
}
alert( "\"" + wChar + "\" Is not a valid symbol for money format\n Ex.
$##,###.##" )
field.focus();
return 1;
}
if ( ( ( n + 1 ) < ( wMoney.length - 2 ) ) &&
(n != 0) ){
alert("Money Field Has too many digits after decimal\nPlease round to
nearest cent" );
field.focus();
return 1;
}
field.value = rMoney;
return 0;
}
function stripSpaces(field){
var workingText = "";
var i = 0;
for( i; i < field.length ; i++ ){
if( field.charAt(i) != " " )
workingText = workingText + field.charAt(i);
}
return workingText;
}
function stripComma(field){
var workingText = "";
var i = 0;
for( i; i < field.length ; i++ ){
if( field.charAt(i) != "," )
workingText = workingText + field.charAt(i);
}
return workingText;
}
function stripSymbol(field, symbol ){
var workingText = "";
var i = 0;
for( i; i < field.length ; i++ ){
if( field.charAt(i) != symbol )
workingText = workingText + field.charAt(i);
}
return workingText;
}
function replaceSymbol(field, symbol, replacement ){
var workingText = "";
var i = 0;
for( i; i < field.length ; i++ ){
if( field.charAt(i) != symbol )
workingText = workingText + field.charAt(i);
else
workingText = workingText + replacement;
}
return workingText;
}
function symbolError(symbol,formField,Mask){
var SymbolHead = "Invalid Phone Number";
var SymbolTail = " IE: 123-456-7890";
alert(SymbolHead + SymbolTail);
formField.select();
formField.focus();
}
function symbolOutError(formField,Mask){
alert("Symbols out of sequence" + Mask);
formField.select();
formField.focus();
}
function phoneValidate(phoneField){
var Mask = "IE: 123-456-7890";
phoneField.value = stripSpaces(phoneField.value);
phoneField.value = phoneField.value.toLowerCase();
phoneField.value = stripSymbol( phoneField.value, "(" );
phoneField.value = replaceSymbol( phoneField.value, "/", "-" );
phoneField.value = replaceSymbol( phoneField.value, "/", "." );
phoneField.value = replaceSymbol( phoneField.value, ")", "-" );
var slashPosition = phoneField.value.indexOf("-");
var dashPosition = phoneField.value.indexOf("-", slashPosition + 1 );
var xPosition = phoneField.value.indexOf("x");
if( slashPosition == -1 ){
symbolError(phoneField,Mask);
return false;
}
if( dashPosition == -1 ){
symbolError("-",phoneField,Mask);
return false;
}
if ( slashPosition > dashPosition ){
symbolOutError(phoneField,Mask);
return false;
}
if ( ( xPosition != -1 ) &&
( dashPosition > xPosition ) ){
symbolOutError(phoneField,Mask);
return false;
}
var endSufixPosition = 0;
if( xPosition == -1 )
endSufixPosition = phoneField.value.length;
else
endSufixPosition = xPosition;
var areaCode = phoneField.value.substring(0,slashPosition);
var prefix = phoneField.value.substring(slashPosition + 1,dashPosition);
var sufix = phoneField.value.substring(dashPosition + 1,endSufixPosition);
var ext = f_trimmer( phoneField.value.substring(endSufixPosition +
1,phoneField.value.length) );
/*
alert(areaCode + "\n" +
prefix + "\n" +
sufix + "\n" +
ext + "\n");
*/
//evaluate_Number_Element(element,formField,elementName,exponent)
if( evaluate_Number_Element( areaCode,phoneField,"Area Code",3 ) ==
false )
return false;
if( evaluate_Number_Element(prefix,phoneField,"prefix",3) == false)
return false;
if( evaluate_Number_Element(sufix,phoneField,"sufix",4) == false)
return false;
if( ( phoneField.value.indexOf("x") == 12 ) &&
( evaluate_Number_Element(ext,phoneField,"Extention",0) == false ) )
return false;
return true;
}
Doug
----- Original Message -----
From: "Ian Skinner" <[EMAIL PROTECTED]>
To: "CF-Talk" <[email protected]>
Sent: Wednesday, November 22, 2006 2:08 PM
Subject: RE: A good email validator?
> I've used this one for quite some time [attached]
>
>
> This list strips attachments.
>
>
> --------------
> Ian Skinner
> Web Programmer
> BloodSource
> www.BloodSource.org
> Sacramento, CA
>
> ---------
> | 1 | |
> --------- Binary Soduko
> | | |
> ---------
>
> "C code. C code run. Run code run. Please!"
> - Cynthia Dunning
>
> Confidentiality Notice: This message including any
> attachments is for the sole use of the intended
> recipient(s) and may contain confidential and privileged
> information. Any unauthorized review, use, disclosure or
> distribution is prohibited. If you are not the
> intended recipient, please contact the sender and
> delete any copies of this message.
>
>
>
>
>
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