JavaScript Form Validation example
This is sample code that uses the
JavaScript Form Validation script in this page.
The code:
<form action="" name="myform" >
<table cellspacing="2" cellpadding="2" border="0">
<tr>
<td align="right">First Name</td>
<td><input type="text" name="FirstName"></td>
</tr>
<tr>
<td align="right">Last Name</td>
<td><input type="text" name="LastName"></td>
</tr>
<tr>
<td align="right">EMail</td>
<td><input type="text" name="Email"></td>
</tr>
<tr>
<td align="right">Phone</td>
<td><input type="text" name="Phone"></td>
</tr>
<tr>
<td align="right">Address</td>
<td><textarea cols="20" rows="5" name="Address"></textarea></td>
</tr>
<tr>
<td align="right">Country</td>
<td>
<SELECT name="Country">
<option value="" selected>[choose yours]
<option value="008">Albania
<option value="012">Algeria
<option value="016">American Samoa
<option value="020">Andorra
<option value="024">Angola
<option value="660">Anguilla
<option value="010">Antarctica
<option value="028">Antigua And Barbuda
<option value="032">Argentina
<option value="051">Armenia
<option value="533">Aruba
</SELECT>
</td>
</tr>
<tr>
<td align="right"></td>
<td><input type="submit" value="Submit"></td>
</tr>
</table>
</form>
<script language="JavaScript" type="text/javascript">
//You should create the validator only after the definition of the HTML form
var frmvalidator = new Validator("myform");
frmvalidator.addValidation("FirstName","req","Please enter your First Name");
frmvalidator.addValidation("FirstName","maxlen=20",
"Max length for FirstName is 20");
frmvalidator.addValidation("FirstName","alpha");
frmvalidator.addValidation("LastName","req");
frmvalidator.addValidation("LastName","maxlen=20");
frmvalidator.addValidation("Email","maxlen=50");
frmvalidator.addValidation("Email","req");
frmvalidator.addValidation("Email","email");
frmvalidator.addValidation("Phone","maxlen=50");
frmvalidator.addValidation("Phone","numeric");
frmvalidator.addValidation("Address","maxlen=50");
frmvalidator.addValidation("Country","dontselect=0");
</script>
The form created by the code:
Back to article:
JavaScript Form Validation: Quick and Easy
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