/*
-------------------------------------------------------------------------
JavaScript Form Validator 
Version 2.0.2
Copyright 2003 JavaScript-coder.com. All rights reserved.
You use this script in your Web pages, provided these opening credit
lines are kept intact.
The Form validation script is distributed free from JavaScript-Coder.com
You may please add a link to JavaScript-Coder.com, 
making it easy for others to find this script.
Checkout the Give a link and Get a link page:
http://www.javascript-coder.com/links/how-to-link.php
You may not reprint or redistribute this code without permission from 
JavaScript-Coder.com.
JavaScript Coder
It precisely codes what you imagine!
Grab your copy here:
http://www.javascript-coder.com/
-------------------------------------------------------------------------  
*/
function Validator(frmname)
{
this.formobj=document.forms[frmname];
if(!this.formobj)
{
alert("BUG: couldnot get Form object "+frmname);
return;
}
if(this.formobj.onsubmit)
{
this.formobj.old_onsubmit = this.formobj.onsubmit;
this.formobj.onsubmit=null;
}
else
{
this.formobj.old_onsubmit = null;
}
this.formobj.onsubmit=form_submit_handler;
this.addValidation = add_validation;
this.setAddnlValidationFunction=set_addnl_vfunction;
this.clearAllValidations = clear_all_validations;
}
function set_addnl_vfunction(functionname)
{
this.formobj.addnlvalidation = functionname;
}
function clear_all_validations()
{
for(var itr=0;itr < this.formobj.elements.length;itr++)
{
this.formobj.elements[itr].validationset = null;
}
}
function form_submit_handler()
{
for(var itr=0;itr < this.elements.length;itr++)
{
if(this.elements[itr].validationset &&
!this.elements[itr].validationset.validate())
{
return false;
}
}
if(this.addnlvalidation)
{
str =" var ret = "+this.addnlvalidation+"()";
eval(str);
if(!ret) return ret;
}
return true;
}
function add_validation(itemname,descriptor,errstr)
{
if(!this.formobj)
{
alert("BUG: the form object is not set properly");
return;
}//if
var itemobj = this.formobj[itemname];
if(!itemobj)
{
alert("BUG: Couldnot get the input object named: "+itemname);
return;
}
if(!itemobj.validationset)
{
itemobj.validationset = new ValidationSet(itemobj);
}
itemobj.validationset.add(descriptor,errstr);
}
function ValidationDesc(inputitem,desc,error)
{
this.desc=desc;
this.error=error;
this.itemobj = inputitem;
this.validate=vdesc_validate;
}
function vdesc_validate()
{
if(!V2validateData(this.desc,this.itemobj,this.error))
{
this.itemobj.focus();
return false;
}
return true;
}
function ValidationSet(inputitem)
{
this.vSet=new Array();
this.add= add_validationdesc;
this.validate= vset_validate;
this.itemobj = inputitem;
}
function add_validationdesc(desc,error)
{
this.vSet[this.vSet.length]= 
new ValidationDesc(this.itemobj,desc,error);
}
function vset_validate()
{
for(var itr=0;itr<this.vSet.length;itr++)
{
if(!this.vSet[itr].validate())
{
return false;
}
}
return true;
}
/*function validateEmailv2(email)
{
// a very simple email validation checking. 
// you can add more complex email checking if it helps 
if(email.length <= 0)
{
return true;
}
var splitted = email.match("^(.+)@(.+)$");
if(splitted == null) return false;
if(splitted[1] != null )
{
var regexp_user=/^\"?[\w-_\.]*\"?$/;
if(splitted[1].match(regexp_user) == null) return false;
}
if(splitted[2] != null)
{
var regexp_domain=/^[\w-\.]*\.[A-Za-z]{2,4}$/;
if(splitted[2].match(regexp_domain) == null) 
{
var regexp_ip =/^\[\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\]$/;
if(splitted[2].match(regexp_ip) == null) return false;
}// if
return true;
}
return false;
}
*/
function validateEmailv2(email) {
if (/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(email)){
//alert("La dirección de email " + email    + " es correcta.") 
return (true)
} else {
//alert("La dirección de email es incorrecta.");
return (false);
}
}
function V2validateData(strValidateStr,objValue,strError) 
{ 
var epos = strValidateStr.search("="); 
var  command  = ""; 
var  cmdvalue = ""; 
if(epos >= 0) 
{ 
command  = strValidateStr.substring(0,epos); 
cmdvalue = strValidateStr.substr(epos+1); 
} 
else 
{ 
command = strValidateStr; 
} 
switch(command) 
{ 
case "req": 
case "required": 
{ 
if(eval(objValue.value.length) == 0) 
{ 
if(!strError || strError.length ==0) 
{ 
strError = objValue.name + " : Required Field"; 
}//if 
alert(strError); 
return false; 
}//if 
break;             
}//case required 
case "maxlength": 
case "maxlen": 
{ 
if(eval(objValue.value.length) >  eval(cmdvalue)) 
{ 
if(!strError || strError.length ==0) 
{ 
strError = objValue.name + " : "+cmdvalue+" characters maximum "; 
}//if 
alert(strError + "\n[Current length = " + objValue.value.length + " ]"); 
return false; 
}//if 
break; 
}//case maxlen 
case "minlength": 
case "minlen": 
{ 
if(eval(objValue.value.length) <  eval(cmdvalue)) 
{ 
if(!strError || strError.length ==0) 
{ 
strError = objValue.name + " : " + cmdvalue + " characters minimum  "; 
}//if               
alert(strError + "\n[Current length = " + objValue.value.length + " ]"); 
return false;                 
}//if 
break; 
}//case minlen 
case "alnum": 
case "alphanumeric": 
{ 
var charpos = objValue.value.search("[^A-Za-z0-9]"); 
if(objValue.value.length > 0 &&  charpos >= 0) 
{ 
if(!strError || strError.length ==0) 
{ 
strError = objValue.name+": Only alpha-numeric characters allowed "; 
}//if 
alert(strError + "\n [Error character position " + eval(charpos+1)+"]"); 
return false; 
}//if 
break; 
}//case alphanumeric 
case "num": 
case "numeric": 
{ 
var charpos = objValue.value.search("[^0-9]"); 
if(objValue.value.length > 0 &&  charpos >= 0) 
{ 
if(!strError || strError.length ==0) 
{ 
strError = objValue.name+": Only digits allowed "; 
}//if               
alert(strError + "\n [Error character position " + eval(charpos+1)+"]"); 
return false; 
}//if 
break;               
}//numeric 
case "alphabetic": 
case "alpha": 
{ 
var charpos = objValue.value.search("[^A-Za-z]"); 
if(objValue.value.length > 0 &&  charpos >= 0) 
{ 
if(!strError || strError.length ==0) 
{ 
strError = objValue.name+": Only alphabetic characters allowed "; 
}//if                             
alert(strError + "\n [Error character position " + eval(charpos+1)+"]"); 
return false; 
}//if 
break; 
}//alpha 
case "alnumhyphen":
{
var charpos = objValue.value.search("[^A-Za-z0-9\-_]"); 
if(objValue.value.length > 0 &&  charpos >= 0) 
{ 
if(!strError || strError.length ==0) 
{ 
strError = objValue.name+": characters allowed are A-Z,a-z,0-9,- and _"; 
}//if                             
alert(strError + "\n [Error character position " + eval(charpos+1)+"]"); 
return false; 
}//if 			
break;
}
case "email": 
{ 
if(!validateEmailv2(objValue.value)) 
{ 
if(!strError || strError.length ==0) 
{ 
strError = objValue.name+": Enter a valid Email address "; 
}//if                                               
alert(strError); 
return false; 
}//if 
break; 
}//case email
case "email2": 
{ 
if(objValue.value.length > 0)
{
if(!validateEmailv2(objValue.value)) 
{ 
if(!strError || strError.length ==0) 
{ 
strError = objValue.name+": Enter a valid Email address "; 
}//if                                               
alert(strError); 
return false; 
}//if 
}
break; 
}//case email2
case "lt": 
case "lessthan": 
{ 
if(isNaN(objValue.value)) 
{ 
alert(objValue.name+": Should be a number "); 
return false; 
}//if 
if(eval(objValue.value) >=  eval(cmdvalue)) 
{ 
if(!strError || strError.length ==0) 
{ 
strError = objValue.name + " : value should be less than "+ cmdvalue; 
}//if               
alert(strError); 
return false;                 
}//if             
break; 
}//case lessthan 
case "gt": 
case "greaterthan": 
{ 
if(isNaN(objValue.value)) 
{ 
alert(objValue.name+": Should be a number "); 
return false; 
}//if 
if(eval(objValue.value) <=  eval(cmdvalue)) 
{ 
if(!strError || strError.length ==0) 
{ 
strError = objValue.name + " : value should be greater than "+ cmdvalue; 
}//if               
alert(strError); 
return false;                 
}//if             
break; 
}//case greaterthan 
case "regexp": 
{ 
if(objValue.value.length > 0)
{
if(!objValue.value.match(cmdvalue)) 
{ 
if(!strError || strError.length ==0) 
{ 
strError = objValue.name+": Invalid characters found "; 
}//if                                                               
alert(strError); 
return false;                   
}//if 
}
break; 
}//case regexp 
case "dontselect": 
{ 
if(objValue.selectedIndex == null) 
{ 
alert("BUG: dontselect command for non-select Item"); 
return false; 
} 
if(objValue.selectedIndex == eval(cmdvalue)) 
{ 
if(!strError || strError.length ==0) 
{ 
strError = objValue.name+": Please Select one option "; 
}//if                                                               
alert(strError); 
return false;                                   
} 
break; 
}//case dontselect 
}//switch 
return true; 
}
/*
Copyright 2003 JavaScript-coder.com. All rights reserved.
*/