Form Validator
.link{font-family:verdana,arial,helvetica; font-size:8pt; color:#003399; font-weight:normal}
.link:hover{font-family:verdana,arial,helvetica; font-size:8pt; color:#FF9900; font-weight:normal}
.header{font-family:arial,verdana,helvetica; font-size:30pt; color:#CC0000; font-weight:bold}
Form Validator
<< Name
<< Address
<< Age
<< Zip
/* Written by Premshree Pillai
Created 2:22 PM 5/12/02
http://www.qiksearch.com
premshree@hotmail.com */
/* Visit http://www.qiksearch.com/javascripts.htm for FREE scripts */
/* Location of script : http://www.qiksearch.com/javascripts/form-validator.htm */
var alphaChars="abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ ";
var numChars="0123456789";
var error;
var error_n;
var error_ad;
var error_a;
var error_z;
var errormsg;
//--------------------------Customise-------------------------------
var isNameReq=true; // True if Name field required else False
var isAddressReq=true; // True if Address field required else False
var isAgeReq=false; // True if Name Age required else False
var isZipReq=true; // True if Name Zip required else False
//------------------------------------------------------------------
function reset_error()
{
error_n=false;
error_ad=false;
error_a=false;
error_z=false;
errormsg='Following Errors Occured ::\n_____________________________\n\n';
}
function validate_name()
{
if(isNameReq)
{
if(document.main.name.value=="")
{
errormsg+='Please enter your Name.\n';
error_n=true;
document.main.name.focus();
}
}
for(var i=0; i
for(var j=0; j
if(alphaChars.charAt(j)==document.main.name.value.charAt(i))
{
break;
}
else
{
if(j==(alphaChars.length-1))
{
errormsg+='"' + document.main.name.value.charAt(i) + '"' + ' is an invalid character for Name.\n';
error_n=true;
}
}
if(error_n)
{
document.main.name.select();
}
}
}
}
function validate_address()
{
if(isAddressReq)
{
if(document.main.address.value=="")
{
errormsg+='Please enter your Address.\n';
error_ad=true;
if(!error_n)
{
document.main.address.focus();
}
}
}
}
function validate_age()
{
if(isAgeReq)
{
if(document.main.age.value=="")
{
errormsg+='Please enter your Age.\n';
error_a=true;
if((!error_n)&&(!error_ad))
{
document.main.age.focus();
}
}
}
for(var i=0; i
for(var j=0; j
if(numChars.charAt(j)==document.main.age.value.charAt(i))
{
break;
}
else
{
if(j==(numChars.length-1))
{
errormsg+='"' + document.main.age.value.charAt(i) + '"' + ' is an invalid character for Age.\n';
error_a=true;
}
}
if(error_a)
{
if((!error_n)&&(!error_ad))
{
document.main.age.select();
}
}
}
}
}
function validate_zip()
{
if(isZipReq)
{
if(document.main.zip.value=="")
{
errormsg+='Please enter Zip.\n';
error_z=true;
if((!error_n)&&(!error_ad)&&(!error_a))
{
document.main.zip.focus();
}
}
}
for(var i=0; i
for(var j=0; j
if(numChars.charAt(j)==document.main.zip.value.charAt(i))
{
break;
}
else
{
if(j==(numChars.length-1))
{
errormsg+='"' + document.main.zip.value.charAt(i) + '"' + ' is an invalid character for Zip.\n';
error_z=true;
}
}
if(error_z)
{
if((!error_n)&&(!error_ad)&&(!error_a))
{
document.main.zip.select();
}
}
}
}
}
function validate()
{
reset_error();
validate_name();
validate_address();
validate_age();
validate_zip();
if(error_n||error_ad||error_a||error_z)
{
error=true;
}
else
{
error=false;
}
if(!error)
{
document.main.submit();
}
else
{
alert(errormsg);
}
}
This is a JavaScript Form validator. When you submit the form, it validates the data you entered in the various fields.
You are allowed to enter only alphabetical characters in the "Name" field. You can enter only numerical data in the "Age" and "Zip" fields.
You can also choose which fields are "required" by the user to be filled.
© 2002 Premshree Pillai. All rights reserved.