// ==========================================================================			 
// @function		Complete AHAH function
// @author		Daniele Florio
// @site		www.gizax.it
// @version		1.1.2 experimental

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

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

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


var completeAHAH = {

	loading : '<div id="div_loading">Attendi il caricamento dei dati...<br /><img src="img/loading.gif" alt="Caricamento dati" /></div>',
	 
	finito : true,
	
	aspetta : function(){
		if(req.readyState == 4)
			this.finito=true;
		else if(this.time > 10000)
			this.finito=true;
		else
			setTimeout("completeAHAH.aspetta();",1000);
	},
	time: 1,
	
	ahah : function (url,target,delay, method,parameters, nameWaitImg) {
		if(this.finito==false){
			this.creaDIV(target, this.loading);
			setTimeout('completeAHAH.ahah(\''+url+'\', \''+target+'\',\''+ delay+'\',\''+ method+'\', \''+parameters+'\',\''+nameWaitImg+'\');',2000)
			return;
		}
		this.finito=false;
		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() {
					setTimeout("completeAHAH.aspetta();",1000);
					completeAHAH.ahahDone(url, target, delay, method, parameters, nameWaitImg);					
				};
				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() {
					completeAHAH.ahahDone(url, target, delay, method, parameters, nameWaitImg);
				};
				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));
	   }
	   
	},

	ahahDone : function (url, target, delay, method, parameters, nameWaitImg) {		
		if(req.readyState == 4)
		{
			element = document.getElementById(target);
			if (req.status == 200) {
				this.creaDIV(target, req.responseText);    
			} 		
			else {
				this.creaDIV(target, "ahah error:\n"+req.statusText);
			}
			//document.body.style.opacity=100;
			this.finito = true;
		}
	},
	
	/*

	@@ 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 : 
	<form id="formName" action="javascript:completeAHAH.likeSubmit('fileName', 'method', 'formName', 'dynamicTarget');">

	*/

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

		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();

		// 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, '', nameWaitImg); 
		}
		else { 
			this.ahah(file, target, '', method, parameters, nameWaitImg); 
		}
	}

};