javascript validation..(interview question)

[Friend]

The flollowing code is a question asked me for an interview.....Anyone can help me how to validate this form professionaly.....using javascript. please help me........

1. Consider the following fragment of HTML.
<SCRIPT LANGUAGE=javascript>
<!--
function checkRequired() {
...
}
//-->
</SCRIPT>
...
<form name=RegForm method=post onsubmit="checkRequired()">
<table>
<tr><td>*Title:</td>
<td><select name=Title>
<option selected>Mr</option>
<option>Mrs</option>
<option>Ms</option>
<option>Miss</option>
</select></td></tr>
<tr><td>First name:</td>
<td><input type=text name=FirstName size=20 maxlength=20 value=''></td></tr>
<tr><td>Last name:</td>
<td><input type=text name=LastName size=20 maxlength=20 value=''></td></tr>
<tr><td>Date of birth:</td>
<td><input type=text name=DOB size=20 maxlength=20 value=''>
<tr><td>Address:</td>
<td><input type=text name=Address size=30 maxlength=128 value=''></td></tr>
<tr><td>Town:</td>
<td><input type=text name=Town size=30 maxlength=40 value=''></td></tr>
<tr><td>County:</td>
<td><input type=text name=County size=30 maxlength=40 value=''></td></tr>
<tr><td>Postcode:</td>
<td><input type=text name=PostCode size=20 maxlength=10 value=''></td></tr>
<tr><td>Email:</td>
<td><input type=text name=Email size=30 maxlength=64 value=''></td></tr>
</table>
</form>
...
Write the checkRequired function to check all information fields inputted by user (all fields are mandatory).The function must check the validity of every parameter (on the basis of rational acceptability) and make a proper
(case-sensitive) formatting for the all form's text fields.

[Eric Pascarello]

look at my sig, it will get you started.
All I can say is if you can not do this without someone's help, then how are you going to do your job?
This is an easy thing they asked, could do the whole thing in less then 10 minutes.
Eric
[ October 12, 2003: Message edited by: Eric Pascarello ]
[ October 12, 2003: Message edited by: Eric Pascarello ]

[Thomas Paul]

I think I would start by adding a submit button.

[Mike Curwen]

I could help you with a few hints on how to validate a form un-professionaly.

[Friend]

Hi Eric, Thomas and Mike,
YOU ARE GREAT PEOPLE !!! I UNDERSTAND...........AND ALSO UNDERSTAND THAT YOU KNOW NOTHING OHTERTHAN MAKING SILLY COMMENTS

[Tom Blough]

Here is a generic validation script. You can see it in action here. It uses additional form element tags to perform specific validation.

[Eric Pascarello]

DID YOU EVEN BOTHER TO LOOK AT MY SIGNATURE? I wrote the stupid thing that you need to get a job. You just need to make two simple changes on certain things. If you were capleable of doing those changes then you might deserve the job.
Eric

[Monday Ngbeken]

Consider the following HTML code snippet:
<SCRIPT LANGUAGE=javascript>

<!--
function checkRequired() {


}

//-->

</SCRIPT>

<form name=RegistrationForm method="post"
onsubmit="checkRequired()">

<table>

<tr><td>*Title:</td>

<td><select name="title">

<option selected>Mr</option>

<option>Mrs</option>

<option>Ms</option>

<option>Miss</option>

<option>Dr</option>
<option>Prof</option>
</select></td></tr>

<tr><td>First name:</td>

<td><input type="text" name="firstName" maxlength="20" /></td></tr>

<tr><td>Last name:</td>
size="20"
<td><input type="text" name="lastName" maxlength="20" /></td></tr>

<tr><td>Date of Birth:</td>
size="20"
<td><input type="text" name="dob" maxlength="20"/>

<tr><td>Address:</td>
size="20"
<td><textarea name="address" cols="40"></textarea></tr>

<tr><td>Town:</td>
row="4",
<td><input type="text" name="town" maxlength="40"/></td></tr>

<tr><td>County:</td>
size="30"
<td><input type="text" name="county" maxlength="40"/></td></tr> size="30"

<tr><td>Postcode:</td>

<td><input type="text" name="postcode" size="20" maxlength="10" /></td></tr>

<tr><td>Email:</td>

<td><input type="text" name="email" size="30" maxlength="64"/></td></tr>

</table>

</form>

...

Write the checkRequired function to check all information fields inputted by user (all fields are mandatory). The function must check the validity of every parameter (on the basis of rational acceptability) and make a proper (case-sensitive) formatting for the all form's text fields.

[Campbell Ritchie]

Welcome to the Ranch

How does your post differ from the original from 2003?