// yrz asynchronous injection

var req = new Array(null);
var tgs = new Array();

function ysubmit(FILE, METHOD){

	var num = document.forms[0].elements.length;
	var url = "";

	//radio button 
	var j = 0;
	var a = 0;
	var radio_buttons = new Array();
	var nome_buttons = new Array();
	var the_form = window.document.forms[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] + "&";
	}
	//checkbox
	var j = 0;
	var a = 0;
	var check_buttons = new Array();
	var nome_buttons = new Array();
	var the_form = window.document.forms[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] + "&";
	}
	for (var i = 0; i < num; i++){
		
		var chiave = document.forms[0].elements[i].name;
		var valore = document.forms[0].elements[i].value;
		var tipo = document.forms[0].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") { yai(url, 'target', '', METHOD); }
	else { yai(FILE, 'target', '', METHOD, parameters); }
}

function arg(url, target, delay, method, parameters) {
	this.url = url;
	this.target = target;
	this.delay = delay;
	this.method = method;
	this.parameters = parameters;
}

function yai(url, target, delay, method, parameters) {
  var yai_idx = 0;

  while(!(req[yai_idx] == null)) { yai_idx++;}

  if (window.XMLHttpRequest) {
	req[yai_idx] = new XMLHttpRequest();
  } else if (window.ActiveXObject) {
	req[yai_idx] = new ActiveXObject("Microsoft.XMLHTTP");
  }

  var lreq = req[yai_idx];
  tgs[yai_idx] = target;
  
  if (method == undefined) {
    method = "GET";
  }
  if ( (method == "GET") || (method == "get") )
  {
	  document.getElementById(target).innerHTML = "<div id='spinner'>&nbsp;</div>";
	  if (lreq) {
		lreq.onreadystatechange = function() {
			yaiOut(yai_idx);
		};
		lreq.open(method, url, true);
		lreq.send("");
	  }
  }

  if ( (method == "POST") || (method == "post") )
  {
	  document.getElementById(target).innerHTML = "<div id='spinner'>&nbsp;</div>";
	  if (lreq) {
		lreq.onreadystatechange = function() {
			yaiOut(yai_idx);
		};
		lreq.open(method, url, true);
		lreq.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
		lreq.send(parameters);
	  }
  }
}  


function yaiOut(idx) {
  if (req[idx].readyState == 4) {
    if (req[idx].status == 200) { 
      document.getElementById(tgs[idx]).innerHTML = req[idx].responseText;
    } else {
      document.getElementById(tgs[idx]).innerHTML= "ahah error:\n" + req[idx].statusText;
    }
	req[idx] = null;
	tgs[idx] = null;
  }
}