******************************************************************************
*File name:validation.js
*Description:Referenced by the pages to validate the form values
*Author:Justin Wang 214026,Infosys
*Date:06-Oct-2005
******************************************************************************/
/******************************************************************************
*File name:checkLeapYear(nYear)
*Description:Check the input year if it is leap year.
*Input parameters:
* nYear- year to be checked
*Return:true on success ,false on no
******************************************************************************/
function checkLeapYear(nYear){
if (nYear % 4 == 0)
if (nYear % 100 == 0)
if (nYear % 400 == 0)
return true;
else
return false;
else
return true;
else
return false;
}
/******************************************************************************
*File name:checkNum(element,value)
*Description:Check the input string only contains number.
*Input parameters:
* element - Name of the form element.
* value- The value of the element.
*Return:true on success ,false on error
******************************************************************************/
function checkNum(element,value){
isOK=checkNull(element,value);
if (!isOK){
return false;
}
str="1234567890";
content=checkContent(value,"@NULL",str);
if(content!=true){
alert(element+" should be number only")
return false;
}
return true;
}
/******************************************************************************
*File name:trim(value)
*Description:Delete the space between characters.
*Input parameters:
* value- input string.
*Return:String which contains no spaces
******************************************************************************/
function trim(value){
var checkStr = value;
var tempStr = '';
var countBlank = 0;
var countBlankEnd = 0;
for(i = 0 ; i < checkStr.length ; i++){
if (checkStr.charAt(i)!= ' '){
break;
}
else{
countBlank ++;
}
}
for(i = checkStr.length - 1 ; i > 0 ; i--){
if (checkStr.charAt(i) != ' '){
break;
}
else{
countBlankEnd ++;
}
}
for(i = countBlank ; i<checkStr.length - countBlankEnd ; i++){
tempStr += checkStr.charAt(i);
}
return(tempStr);
}
/******************************************************************************
*File name:checkNull(element,value)
*Description:Check if the value is NULL
*Input parameters:
* element - Name of the form element.
* value- The value of the element.
*Return:true on success ,false on error
******************************************************************************/
function checkNull(element,value){
if(value==''){
alert(element+" should not be left blank!");
return false;
}
temp=trim(value);
if(temp==''){
alert(element+" should not be only spaces!")
return false;
}
return true;
}
/******************************************************************************
*File name:checkContent(value,start,content)
*Description:Check the start character and the body of the string.
*Input parameters:
* value - The value to be checked
* start - a string which contains the validate character for the first
* character and "@NULL" on no check on the first character .
* content- a string which contains the validate character for the remain
* part of the String.
*Return:true on success ,false on error
******************************************************************************/
function checkContent(value,start,content){
ch1 =value.charAt(0);
startnull="@NULL";
if(start!=startnull){
for(k = 0;k < start.length; k ++){
if(ch1 == start.charAt(k)){
break;
}
}
if(k == start.length){
return false;
}
}
for(i = 0;i < value.length;i ++ ){
ch = value.charAt(i);
for(j = 0;j < content.length;j ++ ){
if( ch == content.charAt(j)){
return true;
}
}
if(j==content.length){
return false;
}
}
return(true);
}
/******************************************************************************
*File name:checkGeneralInput(element,value)
*Description:Check the general input:should only be space and character and not
* null.
*Input parameters:
* element - Name of the form element.
* value- The value of the element.
*Return:true on success ,false on error
******************************************************************************/
function checkGeneralInput(element,value){
isOk=checkNull(element,value);
if(!isOk){
return false;
}
str=" ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
content=checkContent(value,"@NULL",str);
if(content==true){
return true;
}
else{
alert(element+" should only be space and character!" );
return false;
}
}
/******************************************************************************
*File name:checkAddr(element,value)
*Description:Should not be left blank and only spaces(Max 50 characters)
*Input parameters:
* element - Name of the form element.
* value- The value of the form.
*Return:flag-relay on the return value of checkNull(element,value)
******************************************************************************/
function checkAddr(element,value){
result=checkNull(element,value);
return result;
}
/******************************************************************************
*File name:checkGender(value)
*Description:should select at least one option
*Input parameters:*
* value- The value of the element.
*Return:true on success ,false on error
******************************************************************************/
function checkGender(value){
for(i=0;i<value.length;i++){
if(value[i].checked==true){
return true;
}
}
alert("Please select your gender")
return false;
}
/******************************************************************************
*File name:checkName(element,value)
*Description:should meet checkGeneralInput(element,value);
*Input parameters:
* element - Name of the form element.
* value- The value of the element.
*Return:flag-relay on the value of checkGeneralInput(element,value)
******************************************************************************/
function checkName(element,value){
flag=checkGeneralInput(element,value);
return flag;
}
/******************************************************************************
*File name:checkCity(element,value)
*Description:should meet checkGeneralInput(element,value);
*Input parameters:
* element - Name of the form element.
* value- The value of the element.
*Return:flag-relay on the value of checkGeneralInput(element,value)
******************************************************************************/
function checkCity(element,value){
flag=checkGeneralInput(element,value);
return flag;
}
/******************************************************************************
*File name:checkState(element,value)
*Description:should meet checkGeneralInput(element,value);
*Input parameters:
* element - Name of the form element.
* value- The value of the element.
*Return:flag-relay on the value of checkGeneralInput(element,value)
******************************************************************************/
function checkState(element,value){
flag=checkGeneralInput(element,value);
return flag;
}
/******************************************************************************
*File name:checkPin(element,value)
*Description:Should not be blank,only numbers and spaces,only spaces not
* allowed.
*Input parameters:
* element - Name of the form element.
* value- The value of the element.
*Return:true on success ,false on error
******************************************************************************/
function checkPin(element,value){
isOk=checkNull(element,value);
if(!isOk)
return false;
str=" 1234567890";
content=checkContent(value,"@NULL",str);
if(content==true)
return true;
else{
alert(element+" should be space and number");
return false;
}
}
/******************************************************************************
*File name:checkTel(element,value)
*Description:only numbers and spaces allowed
*Input parameters:
* element - Name of the form element.
* value- The value of the element.
*Return:true on success ,false on error
******************************************************************************/
function checkTel(element,value){
str=" 1234567890";
content=checkContent(value,"@NULL",str);
if(content==true)
return true;
else{
alert(element+" should be space and number");
return false;
}
}
/******************************************************************************
*File name:checkFax(element,value)
*Description:only numbers and spaces allowed
*Input parameters:
* element - Name of the form element.
* value- The value of the element.
*Return:true on success ,false on error
******************************************************************************/
function checkFax(element,value){
str=" 1234567890";
content=checkContent(value,"@NULL",str);
if(content==true)
return true;
else
return false;
}
/******************************************************************************
*File name:checkMail(element,value)
*Description:Only spaces not allowed,should have one '@' character and one or
* more '.','@' and '.' should come only after the first 5 characters.
*Input parameters:
* element - Name of the form element.
* value- The value of the element.
*Return:true on success ,false on error
******************************************************************************/
function checkEmail(element,value){
isOk=checkNull(element,value);
if(!isOk){
return false;
}
index=value.indexOf(".");
indexlast=value.lastIndexOf(".");
if(index==-1||indexlast==value.length-1){
alert("Email format invalid,should contain \".\"");
return false;
}
place1=value.indexOf("@");
place2=value.lastIndexOf("@");
if(place1!=place2||place1==-1||place1<5){
alert("Email format invalid,should contain \"@\" following 5 characters");
return false;
}
return true;
}
/******************************************************************************
*File name:checkDate(element,value)
*Description:DD-MON-YYYY format,Should be a valid Date
*Input parameters:
* element - Name of the form element.
* date- date.
*Return:true on success ,false on error
******************************************************************************/
function checkDate(element,date){
/*validate the content*/
str="-1234567890ABCDEFGJLMNOPRSTUVYabcdefgjlmnoprstuvy";
contentOK=checkContent(date,"@NULL",str);
if(!contentOK){
alert(element+" contains invalid character! ")
return false;
}
/*validate the format*/
index1=date.indexOf("-");
index2=date.lastIndexOf("-");
if(index1!=2||index2!=6||date.charAt(2)!="-"||date.charAt(6)!="-"){
alert(element+" should be \"dd-mmm-yyyy\"");
return false;
}
/*validate the input of day*/
var day=date.substring(0,date.indexOf('-'));
fDay=parseFloat(day);
if(isNaN(fDay)||(!isFinite(fDay))){
alert("Day should be number please!")
return false;
}
if(fDay>31||fDay<1){
alert("Day"+" should be proper");
return false;
}
/*validate the input of month*/
var month=
date.substring(date.indexOf('-')+
1,date.lastIndexOf('-')).toLowerCase();
var arr = new Array('Jan',
'Feb','Mar','Apr','May','Jun','Jul','Aug','Sep','Oct','Nov','Dec');
for(var index = 0;index <= 11;index++){
if(arr[index].toLowerCase()==month.toLowerCase())
break;
}
if(index>11){
alert("Month"+" should be proper like \"Apr/apr \"");
return false;
}
/*validate the input of year*/
var year=date.substring(date.lastIndexOf('-')+1,date.length);
fYear=parseFloat(year);
datenow=new Date();
if(isNaN(fYear)||(!isFinite(fYear))){
alert("Year should be number please!")
return false;
}
if(fYear>=datenow.getFullYear()){
alert("Year should be proper");
return false;
}
/*validate the relation of month,day*/
if(fDay>29&&"feb"==month.toLowerCase()){
alert("Feb has only max 29 days and 28 when leap year");
return false;
}
if(fDay>28&&"feb"==month.toLowerCase()&&checkLeapYear(fYear)){
alert("Feb has only 28 days when leap year");
return false;
}
switch(month.toLowerCase()){
case "apr":;
case "june":;
case "sep":;
case "nov":if(fDay>30) {
alert("Please check the relation between day and month!");
return false;
}
default:break;
}
return true;
}
/******************************************************************************
*File name:checkID(element,value)
*Description:Should not be blank,Only numbers
*Input parameters:
* element - Name of the form element.
* value- The value of the element.
*Return:true on success ,false on error
******************************************************************************/
function checkID(element,value){
isOk=checkNum(element,value);
if(!isOk){
return false;
}
else
return true;
}
/******************************************************************************
*File name:checkDeposit(element,value)
*Description:Only numbers .Amount should be greater than 500
* (Maximum of two decimal points are allowed)
*Input parameters:
* element - Name of the form element.
* value- The value of the element.
*Return:true on success ,false on error
******************************************************************************/
function checkIniDeposit(element,value){
isOk=checkNum(element,value);
if(!isOk){
return false;
}
temp=parseFloat(value);
if(temp<=500){
alert("Initial deposit should larger than 500Rs")
return false;
}
return true;
}
/******************************************************************************
*File name:checkAccNum(element,value)
*Description:Should not be blank,only numbers
*Input parameters:
* element - Name of the form element.
* value- The value of the element.
*Return:true on success ,false on error
******************************************************************************/
function checkAccNum(element,value){
isOk=checkNum(element,value);
if(!isOk){
return false;
}
else
return true;
}
/******************************************************************************
*File name:checkAmount(element,value)
*Description:Amount should be greater than 0 (Maximum two decimal
* points are allowed),only numbers
*Input parameters:
* element - Name of the form element.
* value- The value of the element.
*Return:true on success ,false on error
******************************************************************************/
function checkAmount(element,value){
isOK=checkNull(element,value);
if (!isOK)
return false;
str=".1234567890";
content=checkContent(value,"@NULL",str);
if(content!=true){
alert(element+" should be number and \".\" only!");
return false;
}
index=value.indexOf(".");
index2=value.lastIndexOf(".");
if(index!=index2){
alert(element+" format error!");
return false;
}
else if(index!=-1&&index!=value.length-3){
alert("Two decimal points are allowed");
return false;
}
temp=parseFloat(value);
if(temp<0){
alert(element+" should be greater than 0 ");
return false;
}
return true;
}
