/* 
Desc:       General functions for web sites
History:    13/08/2010  -   Added f_get_request Synchronous call
*/


//Asynchronous
function f_make_request(url, fn_callback, as_destination, ab_append) {
    var httpRequest;

    if (window.XMLHttpRequest) { // Mozilla, Safari, ...
        httpRequest = new XMLHttpRequest();
        if (httpRequest.overrideMimeType) {
            httpRequest.overrideMimeType('text/xml');
        }
    } 
    else if (window.ActiveXObject) { // IE
        try {
            httpRequest = new ActiveXObject("Msxml2.XMLHTTP");
        } 
        catch (e) {
            try {
                httpRequest = new ActiveXObject("Microsoft.XMLHTTP");
            } 
            catch (e) {}
        }
    }

    if (!httpRequest) {
        alert('Cannot create an XMLHTTP instance. Please Try again.');
        return false;
    }
    httpRequest.onreadystatechange = function() { fn_callback(httpRequest, as_destination, ab_append); };
    httpRequest.open('GET', url, true);
    httpRequest.send('');
}

//Synchronous
function f_get_request(url) {
    if (window.XMLHttpRequest) { // Mozilla, Safari, Ie7+ ...
        httpRequest = new XMLHttpRequest();
        if (httpRequest.overrideMimeType) {
            httpRequest.overrideMimeType('text/xml');
        }
        
        if (httpRequest) {
            httpRequest.open('GET', url, false);
            httpRequest.send('');
            return httpRequest.responseText; 
        }
    } 
    return '' ;
}//
// Date: 09/06/2009
// Desc: Suscribe Functions for validating and subscribing.
// 

function f_subscribe(httpRequest) {
    
    try
    {
        if (httpRequest.readyState == 4) {
            if (httpRequest.status == 200) {
                alert(httpRequest.responseText);
            } else {
                alert('There was a problem with the request. Please Try again.');
            }
            
            btn = document.getElementById('enews-subscribe-submit') ;
            btn.disabled = false ;
            btn.value = "Subscribe" ;
        }
     }
     catch( e )
     {
        alert('Unable to process subscribe: ' + e.description);
     }

}


function f_subscribe_check() {
    var c, n, e, b, r, btn, frm ;

    frm = document.getElementById('enews-subscribe-form') ;

    n = document.getElementById('enews-subscribe-name-input') ;    
    if (n.value == '') {
        alert('Please enter a user name.') ;
        frm.enews_subscribe_name.focus()
        return false ;
    }
    
    e = document.getElementById('enews-subscribe-email-input') ;    
    if (e.value == '') {
        alert('Please enter an email address.') ;
        frm.enews_subscribe_email.focus()
        return false ;
    }
    
    b = document.getElementById('enews-subscribe-book') ;
    c = document.getElementById('enews-subscribe-customer') ;
   
    // NO AJAX FOR NOW :-(
    //btn = document.getElementById('enews-subscribe-submit') ;
    //btn.disabled = true ;
    //btn.value = "Please Wait..."

    //NOTE: Add Math.random() as an extra parameter to the URL is always different. This way the result will not be cached and the command will always execute.    
    //r = "http://user.enewsexperts.com.au/ws/subscribe.aspx?c=" + c.value + "&name=" + n.value + "&email=" + e.value + "&book=" + b.value + "&rnd=" + Math.random() ;
    //f_make_request(r, f_subscribe) ;

    // NO AJAX WAY
    frm.action = "http://user.enewsexperts.com.au/ws/subscribe.aspx" ;
    frm.submit();
}    


document.write('<div id="enews-subscribe"><form id="enews-subscribe-form" method="post" action="" onsubmit="f_subscribe_check() ; return false;"><table id="enews-subscribe-main"><tbody><tr><td><span id="enews-subscribe-name">Name:</span></td><td><input id="enews-subscribe-name-input" type="text" maxlength="128" name="enews_subscribe_name"/></td></tr><tr><td><span id="enews-subscribe-email">Email:</span></td><td><input id="enews-subscribe-email-input" type="text" maxlength="128" name="enews_subscribe_email"/></td></tr><tr><td><input type="Hidden" name="enews_subscribe_post" value="posted"/></td><input type="Hidden" name="enews_subscribe_book" id="enews-subscribe-book" value="Default"/></td><input type="Hidden" name="enews_subscribe_customer" id="enews-subscribe-customer" value="AAdVJ2G_dq84Ly8vnsisLyD2[SDqhgHJ"/></td></tr><tr><td><br /></td><td><input id="enews-subscribe-submit" value="Subscribe" type="submit" /><br /><span id="enews-branding">Powered by <a href="http://www.schoolenews.com.au" style="color:#85ad00; text-decoration: underline;">School Enews</a></span></td></tr></tbody></table></form></div>')