Untitled

<!DOCTYPE html>
<html>
<script>
function validation(){
    var x=document.getElementById("username").value;
    var y=document.getElementById("psw").value;
    if ((x==null||x==" ")&&(y==null||y==" ")){
        alert(" Enter name and password ");
    }else if(x==null||x==" ") {
        alert(" You must enter your username ");
        return false;
    }else if(y==null||y==" "){
        alert ("You must enter your password ");
        return false;
    }
else
 { window.location="login.php"; }
}
</script>

<body>
<form name= "myform" onsubmit="return validation();" method="post">
Username: <input type="text" id="username" name="uname"><br> <br>
Password: <input type="password" id="psw" name="pass">
 <br><br>
<input type="submit" value=" Login"></form>
<button type="button" onclick="location.href='SignUp.php';">Sign Up</button>
 </body> </html>