//**************************************
//     
// Name: Get login name/password in popu
//     p and return result
// Description:How can I capture a login
//     name and password in a popup window and 
//     then pass it onto the next page? 
Found at: http://www.irt.org
// By: Found on the Web
//**************************************
//     

initial.html: 
<SCRIPT LANGUAGE=JAVASCRIPT><!--
var loginname = '';
var loginpassword = '';
    function windowOpen() {
    var myWindow=window.open('popup.html','windowRef','width=200,height=200');
    myWindow.location.href = 'popup.html';
    if (!myWindow.opener)
    myWindow.opener = self;
}


    function go(url) {
    location.href = url + '?' + loginname + '&' + loginpassword;
}

windowOpen();
//--></SCRIPT>
<A HREF="javascript:go('nextpage.html')">go to next page</A>
popup.html: 
<SCRIPT LANGUAGE=JAVASCRIPT><!--
    function returnDetails() {
    opener.loginname = document.myForm.loginname.value;
    opener.loginpassword = document.myForm.loginpassword.value;
    self.close();
}

//--></SCRIPT>
<FORM NAME="myForm">
Name: <INPUT TYPE="TEXT" NAME="loginname">
Password: <INPUT TYPE="PASSWORD" NAME="loginpassword">
<INPUT TYPE="BUTTON" VALUE="ENTER" onClick="returnDetails()">
</FORM>
nextpage.html: 
<SCRIPT LANGUAGE=JAVASCRIPT><!--
var start = location.search.indexOf('?');
var end= location.search.indexOf('&');
var loginname = location.search.substring(start+1,end);
var loginpassword = location.search.substring(end+1);
alert('Name = ' + loginname + '\n' + 'Password = ' + loginpassword);
//--></SCRIPT>