Program:
<html>
<head>
<title>Login Form</title>
<script language="Javascript">
function validate()
{
name=document.forms[0].elements[0].value;
name_re=new RegExp("^[A-Za-Z][a-zA-Z]+$","g");
pwd_re-new RegExp("^[0-ga-zA-Z]+$","g");
if(name.match(name_re))
{
if(pwd.match(pwd_re))
{
alert("login successful");
//document.forms[0].elements[1].select();
var mywindow=window.open(" "," ","toolbar=yes,menubar=yes,status=yes");
var mywindow.document.write("<p>you entered username: and password is correct</p>"):
else
{
alert("invalid Password");
document.forms[0].elements[1].select();
}
}
else
{
alert("invalid Username");
document.forms[0].elements[0].select();
}
}</script>
</head>
<body bgcolor="#abcdef">
<h3 align="center">Login</h3>
<form>
<p align="center">Name<input type="text" name="uname" value=" " size="15">
<p align="center">Password<input type="Password" name="pwd" value=" " size="15">
<p align="center">Name<input type="buttom" name="submit" value="login" onclick="validate()">
<input type="reset" name="reset" value="cancel">
</form>
</body>
</html>
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