//**************************************
//     
// Name: Password protect a page
// Description:How can I password protec
//     t a page? The simplist and most effectiv
//     e password protection using just clients
//     ide JavaScripting, relies on the user no
//     t knowing the target filename.
Found on the web at:http://www.irt.org
// By: Found on the Web
//
// Inputs:Where frameName1 and frameName
//     2 are the names of the two frames that y
//     ou want to change. 
//
// Assumes:
Note, the user can find the directory location, by examining the source, therefore you must protect your directory by placing a default file inside it, which your server will always send when the directory is requested, e.g. index.html, otherwise a directory listing will be sent. 
It is also possible on Unix systems, to just set the parent (or all) directory's permissions to rwx--x--x and all other files to rwxr--r--. The user cannot get directory listings, but can still access any files there. (Thanks to Mike Crawford for this last tip.)
//**************************************
//     

<SCRIPT LANGUAGE=JAVASCRIPT><!--
    function go() {
    window.location.href = "http://www.somewhere.com/" +
    document.formName.passwordName.value + '.html';
    return false;
}

//--></SCRIPT>
<FORM NAME="formName" onSubmit="return go()">
Enter Password: <INPUT TYPE="password" NAME="passwordName" VALUE="" SIZE=8>
</FORM>