// ==========================================================================			 
// @function		Complete AHAH function
// @author		Daniele Florio
// @site		www.gizax.it
// @version		1.1.3 experimental

// @thanksTo		Andrea Paiola,Walter Wlodarski,Scott Chapman

// @updated 1.1.3 ( execJS function ) @thanks to Giovanni Zona

// (c) 2006 Daniele Florio <daniele@gizax.it>

// ==========================================================================

/* USAGE:

1) Posting data to form: 
<form id="myform" action="javascript:ahahscript.likeSubmit('helloworld.php', 'post', 'myform', 'mytarget');">


2) Getting simple url

<a href="#" onclick="javascript:ahahscript.ahah('test.htm', 'mytaget', '', 'GET', '', this);">click me</a>

*/

var ahahscript = {

loading : 'loading...',

ahah : function (url, target, delay, method, parameters, loaderimg) {

if ( ( method == undefined ) || ( method == "GET" ) || ( method == "get" ) ){

//this.creaDIV(target, this.loading);

if (window.XMLHttpRequest) {
req = new XMLHttpRequest();
} 
else if (window.ActiveXObject) {
req = new ActiveXObject("Microsoft.XMLHTTP");
}
if (req) {
req.onreadystatechange = function() {
ahahscript.ahahDone(url, target, delay, method, parameters);
};
req.open(method, url, true);
req.send("");
}
}
if ( (method == "POST") || (method == "post") ){

//this.creaDIV(target, this.loading);

if (window.XMLHttpRequest) {
req = new XMLHttpRequest();
} 
else if (window.ActiveXObject) {
req = new ActiveXObject("Microsoft.XMLHTTP");
}
if (req) {
req.onreadystatechange = function() {
ahahscript.ahahDone(url, target, delay, method, parameters,loaderimg);
};
req.open(method, url, true);
req.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
req.send(parameters);
}
}
},

creaDIV : function (target, html){

if (document.body.innerHTML){
document.getElementById(target).innerHTML = html;
}
else if (document.getElementById){
var element = document.getElementById(target);
var range = document.createRange();

range.selectNodeContents(element);
range.deleteContents();
element.appendChild(range.createContextualFragment(html));

}
},

execJS : function (node) {

var st = node.getElementsByTagName('SCRIPT');
var strExec;

var bSaf = (navigator.userAgent.indexOf('Safari') != -1);
var bOpera = (navigator.userAgent.indexOf('Opera') != -1);
var bMoz = (navigator.appName == 'Netscape');

for(var i=0;i<st.length; i++) {     
if (bSaf) {
strExec = st[i].innerHTML;
}
else if (bOpera) {
strExec = st[i].text;
}
else if (bMoz) {
strExec = st[i].textContent;
}
else {
strExec = st[i].text;
}
try {
eval(strExec);
} catch(e) {
alert(e);
}
}

},	

ahahDone : function (url, target, delay, method, parameters,loaderimg) {		
if (req.readyState == 4) { 
element = document.getElementById(target);
if (req.status == 200) {
//this.creaDIV(target, req.responseText);
document.getElementById(loaderimg).style.visibility='hidden';
output = req.responseText;
document.getElementById(target).innerHTML = output;
var j = document.createElement("div");
j.innerHTML = "_" + output + "_";
//alert(output);
this.execJS(j);
} 		
else {
this.creaDIV(target, "Ajax Error:\n"+req.statusText);
}
}
},

/*

@@ parameters : 
fileName	= name of your cgi or other
method		= GET or POST, default is GET
formName	= name of your form
dynamicTarget	= name of your dynamic Target DIV or other

@@ usage : 


*/

likeSubmit : function ( file, method, formName, target ) {

var the_form = document.getElementById(formName);
var num = the_form.elements.length;
var url = "";
var radio_buttons = new Array();
var nome_buttons = new Array();
var check_buttons = new Array();
var nome_buttons = new Array();


// submit radio values
var j = 0;
var a = 0;
for(var i=0; i<the_form.length; i++){
var temp = the_form.elements[i].type;
if ( (temp == "radio") && ( the_form.elements[i].checked) ) { 
nome_buttons[a] = the_form.elements[i].name;
radio_buttons[j] = the_form.elements[i].value; 
j++; 
a++;
}
}
for(var k = 0; k < radio_buttons.length; k++) {
url += nome_buttons[k] + "=" + radio_buttons[k] + "&";
}

// submit checkbox values
var j = 0;
var a = 0;
for(var i=0; i<the_form.length; i++){
var temp = the_form.elements[i].type;
if ( (temp == "checkbox") && ( the_form.elements[i].checked) ) { 
nome_buttons[a] = the_form.elements[i].name;
check_buttons[j] = the_form.elements[i].value; 
j++; 
a++;
}
}
for(var k = 0; k < check_buttons.length; k++) {
url += nome_buttons[k] + "=" + check_buttons[k] + "&";
}

// submit all kind of input		
for (var i = 0; i < num; i++){	
var chiave = the_form.elements[i].name;
var valore = the_form.elements[i].value;
var tipo = the_form.elements[i].type;

if ( (tipo == "submit") || (tipo == "radio") || (tipo == "checkbox") ){}
else {
url += chiave + "=" + valore + "&";
}
}

var parameters = url;
url = file + "?" + url;

if (method == undefined) { 
method = "GET"; 	
}
if (method == "GET") { 
this.ahah(url, target, '', method, ''); 
}
else { 
this.ahah(file, target, '', method, parameters); 
}
}

};