var req;
var which;
var xmlTags;
var htmlTag; 

function startCall(){
    var abi = document.forms[0].testAjax.value;
    var url = "ajaxcall.do?abi=" + abi;
    xmlTags = new Array("abi", "flag","tabi");
    htmlTag = "rssData";
    retrieveURLSingle(url);
}

function retrieveURL(url,callback) {
    if (url != "") {
      if (window.XMLHttpRequest) { // Non-IE browsers
        req = new XMLHttpRequest();
        req.onreadystatechange = function () {
    		if (req.readyState != 4) return;
    		if (req.status != 200 && req.status != 304) {
    			return;
    		}
    		callback(req);
    	}
        try {
          req.open("POST", url, true);
        } catch (e) {
          alert(e);
        }
        req.send(null);
      } else if (window.ActiveXObject) { // IE
        req = new ActiveXObject("Microsoft.XMLHTTP");
         if (req) {
          req.onreadystatechange =  function () {
        	  if (req.readyState != 4) return;
        	  if (req.status != 200 && req.status != 304) {
        		  return;
        	  }
        	  callback(req);
          }
          req.open("POST", url, true);
          req.send();
        }
      }
    }
}

function retrieveURLSingle(url) {
    if (url != "") {
      if (window.XMLHttpRequest) { // Non-IE browsers
        req = new XMLHttpRequest();
        req.onreadystatechange = processStateChange;
        try {
          req.open("POST", url, true);
        } catch (e) {
          alert(e);
        }
        req.send(null);
      } else if (window.ActiveXObject) { // IE
        req = new ActiveXObject("Microsoft.XMLHTTP");
         if (req) {
          req.onreadystatechange = processStateChange;
          req.open("POST", url, true);
          req.send();
        }
      }
    }
}

function creaTabellaErrori(t,s,errors){
    //var tabella = '<span id="rssErrors">';
    var tabella = '<table width="93%" border="0" cellspacing="0" cellpadding="5" class="boxErrore" >';
          tabella += '<tr>';
            tabella += '<td valign="top">';
                tabella += '<p>';
                tabella += '<span class="TestoRosso">';
                tabella += t;
                tabella += '</span>';
                tabella += '<br>';
                tabella += '<br>';
                tabella += s;
                tabella += '</p>';
                tabella += errors;
            tabella += '</td>';
          tabella += '</tr>';
    tabella += '</table>';
    //tabella += '</span>';
    return tabella;
}

function validationErrors(xml){
    t = xml.getElementsByTagName("errorTitle")[0];

    if (t != null){
        t = t.firstChild.data;
    }else{
        t = "";
    }
    s = xml.getElementsByTagName("errorSubitle")[0];

    if (s != null){
        s = s.firstChild.data;
    }else{
        s = "";
    }
    j = 0;
    var errors = "";

    while (j >= 0) {
        e = xml.getElementsByTagName("error")[j];

        if (e != null) {
            e = e.firstChild.data;
            errors += e;
            j++;
        } else {
            j = -1;
        }
    }
    if(errors == ""){
        document.getElementById("rssErrors").innerHTML="";
    } else {
        document.getElementById("rssErrors").innerHTML = creaTabellaErrori(t,s,errors);
    }
}

function processStateChange() {
    
    if (req.readyState == 4) { // Complete
        
        if (req.status == 200) { // OK response
            xml = req.responseXML;
            validationErrors(xml);
            var html = ""; 
            i = 0;

            while (i >= 0) {
                var singleLine = tagProcess(xml, i);

                if(singleLine != ""){
                    html += singleLine;
                    i++;
                } else {
                    i = -1;
                }
            }
            document.getElementById(htmlTag).innerHTML = html;
        } else {
            alert("Problem: " + req.statusText);
        }
    }
}
  
function tagProcess(xml, line){
    var lineString = "";
    
    for (var k = 0; k < xmlTags.length; k++){
        var tagSingolo = xml.getElementsByTagName(xmlTags[k])[line];
        
        if(tagSingolo != null){
            lineString += tagSingolo.firstChild.data;
        }
    }
    return lineString;
}

//*********************************************************************
// goPrevious: submit verso WizardActioncon richiesta pagina precedente
//*********************************************************************
function goPrevious() {
    document.forms[0].method.value="goBack";
    document.forms[0].submit();
}

//*********************************************************************
// goAhead: submit verso WizardActioncon richiesta prossima pagina
//*********************************************************************
function goAhead() {
    //document.forms[0].method.value="goAhead";
    document.forms[0].submit();
}

//*********************************************************************
// uscita applicazione
//*********************************************************************
function goOut() {
	window.close();	
}