DHTML form validation

DHTML form validation

body{
font-family: Trebuchet MS, Lucida Sans Unicode, Arial, sans-serif; /* Font to use */
background-color:#FFF;
font-size:0.9em;

}

/* Style for invalid input */
.invalidInput{
border:1px solid #F00;
padding:1px;
}

/* Style for valid input */
.validInput{
border:1px solid #FFF;
padding:1px;

}

/************************************************************************************************************
(C) www.dhtmlgoodies.com, February 2006

This is a script from www.dhtmlgoodies.com. You will find this and a lot of other scripts at our website.

Terms of use:
You are free to use this script as long as the copyright message is kept intact. However, you may not
redistribute, sell or repost it without our permission.

Thank you!

www.dhtmlgoodies.com
Alf Magne Kalleland

************************************************************************************************************/

// Patterns
var formValidationMasks = new Array();
formValidationMasks['email'] = /\b[A-Z0-9._%-]+@[A-Z0-9.-]+\.[A-Z]{2,4}\b/gi; // Email
formValidationMasks['numeric'] = /^[0-9]+$/gi; // Numeric
formValidationMasks['zip'] = /^[0-9]{5}\-[0-9]{4}$/gi; // Numeric

var formElementArray = new Array();

function validateInput(e,inputObj)
{
if(!inputObj)inputObj = this;
var inputValidates = true;

if(formElementArray[inputObj.name]['required'] && inputObj.tagName=='INPUT' && inputObj.value.length==0)inputValidates = false;
if(formElementArray[inputObj.name]['required'] && inputObj.tagName=='SELECT' && inputObj.selectedIndex==0){
inputValidates = false;
}
if(formElementArray[inputObj.name]['mask'] && !inputObj.value.match(formValidationMasks[formElementArray[inputObj.name]['mask']]))inputValidates = false;

if(formElementArray[inputObj.name]['freemask']){
var tmpMask = formElementArray[inputObj.name]['freemask'];
tmpMask = tmpMask.replace(/-/g,'\\-');
tmpMask = tmpMask.replace(/S/g,'[A-Z]');
tmpMask = tmpMask.replace(/N/g,'[0-9]');
tmpMask = eval("/^" + tmpMask + "$/gi");
if(!inputObj.value.match(tmpMask))inputValidates = false
}

if(formElementArray[inputObj.name]['regexpPattern']){
var tmpMask = eval(formElementArray[inputObj.name]['regexpPattern']);
if(!inputObj.value.match(tmpMask))inputValidates = false
}
if(!formElementArray[inputObj.name]['required'] && inputObj.value.length==0 && inputObj.tagName=='INPUT')inputValidates = true;

if(inputValidates){
inputObj.parentNode.className='validInput';
}else{
inputObj.parentNode.className='invalidInput'
}
}

function isFormValid()
{
var divs = document.getElementsByTagName('DIV');
for(var no=0;no

DHTML form validation

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