var position ;
var id_element;

function getXmlHttpRequestObject() {
   if (window.XMLHttpRequest) {
      return new XMLHttpRequest(); //Outros browsers sem ser o IE
   } else if(window.ActiveXObject) {
      return new ActiveXObject("Microsoft.XMLHTTP"); //IE
   } else {
      //Exibe a mensagem de erro
      alert("Your browser does not accept the XmlHttpRequest object.Please update it");

   }
}


function loadOnDIV(URL,divResponseID) {
   /** create new xmlhttprequest **/
   var ajax = getXmlHttpRequestObject();
   if(ajax) {
      ajax.open("POST", URL, true);
      headerResponse='application/x-www-form-urlencoded';
      ajax.setRequestHeader("Content-Type", headerResponse);
      ajax.onreadystatechange = function() {
         if(ajax.readyState == 4 ) {
            if (ajax.responseText == false) {
               //alert("empty response from "+param);
            }
            else {
               if (document.getElementById(divResponseID)){
                  document.getElementById(divResponseID).innerHTML = ajax.responseText;
               }
            }

         }
      }
      ajax.send(null);
   }
}


function loadOnDIVField(URL,divResponseID) {
   /** create new xmlhttprequest **/
   var ajax = getXmlHttpRequestObject();
   if(ajax) {
      ajax.open("GET", URL, true);
      headerResponse='application/x-www-form-urlencoded';
      ajax.setRequestHeader("Content-Type", headerResponse);
      ajax.onreadystatechange = function() {
         if(ajax.readyState == 4 ) {
            if (ajax.responseText == false) {
               //alert("empty response from "+param);

            }
            else {
               if (document.getElementById(divResponseID))
               document.getElementById(divResponseID).value = ajax.responseText;
            }

         }
      }
      ajax.send(null);
   }
}

function loadXMLDoc_Ajax(url) {
   // branch for native XMLHttpRequest object
   if (window.XMLHttpRequest) {
      req = new XMLHttpRequest();
      req.onreadystatechange = processReqChange_Ajax;
      req.open("GET", url, true);
      req.send(null);
   // branch for IE/Windows ActiveX version
   } else if (window.ActiveXObject) {
      req = new ActiveXObject("Microsoft.XMLHTTP");
      if (req) {
         req.onreadystatechange = processReqChange_Ajax;
         req.open("GET", url, true);
         req.send();
      }
   }
}

function processReqChange_Ajax() {
   // only if req shows "complete"
   if (req.readyState == 4) {
      // only if "OK"
      if (req.status == 200) {
         // ...processing statements go here
         response  = req.responseXML.documentElement;
         if(response) {
            var result = new Array();

            for(i=0; i < response.getElementsByTagName('id').length; i++){
               result[i] = {'id': response.getElementsByTagName('id')[i].firstChild.data, 'title': response.getElementsByTagName('title')[i].firstChild.data, 'content': response.getElementsByTagName('content')[i].firstChild.data, 'image': response.getElementsByTagName('image')[i].firstChild.data, 'image_id': response.getElementsByTagName('image_id')[i].firstChild.data, 'friendly_url': response.getElementsByTagName('friendly_url')[i].firstChild.data};

            }
            //alert(response.getElementsByTagName('id').value);
            loadResult_Ajax('',result,id_element);
         }
      } else {
         alert("There was a problem retrieving the XML data:\n" + req.statusText);
      }
   }
}

function loadResult_Ajax(url, result, id_element_form){
   id_element = id_element_form;

   var field_1 = 'top_article_title_'+id_element;
   var field_2 = 'top_article_link_'+id_element;
   var field_3 = 'top_article_content_'+id_element;
   var field_4 = 'image_uploaded_'+id_element;
   var field_5 = 'article_id_'+id_element;
   var field_6 = 'article_image_id_'+id_element;


   if (result != ''){
      // Response mode
      for(i=0; i < result.length; i++){
         document.getElementById(field_1).value = result[i].title;
         document.getElementById(field_2).value = result[i].friendly_url;
         document.getElementById(field_3).value = result[i].content;
         document.getElementById(field_4).innerHTML = result[i].image;
         document.getElementById(field_5).value = result[i].id;
         document.getElementById(field_6).value = result[i].image_id;
      }
   } else if(url != '') {
      // Input mode
      return (loadXMLDoc_Ajax(url));
   }
}



function SaveAjax(url,divResponseID,form,type_return){
   /** create new xmlhttprequest **/
   var ajax = getXmlHttpRequestObject();
   var response_div= document.getElementById(divResponseID);
   if(ajax) {

        this.form= form;
        var counter;
        var params = "";
        if (this.form.elements.length==0){
            alert('No elements in this form');
            return false;
        }
        for (counter = 0; counter <= this.form.elements.length; counter++)
        {
            if (this.form.elements[counter])
            {
                if (this.form.elements[counter].type != "button" && this.form.elements[counter].type != "submit")
                {
                    // RADIO EXCEPTION ( WHEN SELECTED )
                    if (this.form.elements[counter].type == "radio"){
                        if (this.form.elements[counter].checked==true)
                        params += this.form.elements[counter].name+"="+this.form.elements[counter].value+"&";
                        // CHECKBOX EXCEPTION ( WHEN SELECTED )
                    } else if (this.form.elements[counter].type == "checkbox"){
                        if (this.form.elements[counter].checked==true)
                        params += this.form.elements[counter].name+"="+this.form.elements[counter].value+"&";
                    } else params += this.form.elements[counter].name+"="+this.form.elements[counter].value+"&";
                }
            }
        }

      ajax.open("POST", url, true);
      //var params="responseType="+outputType+"&"+params;
        //toPostURL=host+'/ajax/'+posturl;
        headerResponse='application/x-www-form-urlencoded';
        ajax.setRequestHeader("Content-Type", headerResponse);
        ajax.onreadystatechange = function() {
            if(ajax.readyState == 4 ) {
               // HTML ---------------------------------
                if (ajax.responseText == false) {
                    alert("HTML Request Error");
                }else{
                  if(type_return == 'innerHtml'){
                     response_div.innerHTML = ajax.responseText;
                  }else if(type_return == 'value'){
                     response_div.value = ajax.responseText;
                  }else if(type_return == 'alert'){
                     alert(ajax.responseText);
                  }

                }
                //  -------------------------------------

            }
        }
        ajax.send(params);
   }
}


/*
=============== functions to contract tenders ==================================*/

function loadXMLDoc_Contract(url) {
   // branch for native XMLHttpRequest object
   if (window.XMLHttpRequest) {
      req = new XMLHttpRequest();
      req.onreadystatechange = processReqChange_Contract;
      req.open("GET", url, true);
      req.send(null);
   // branch for IE/Windows ActiveX version
   } else if (window.ActiveXObject) {
      req = new ActiveXObject("Microsoft.XMLHTTP");
      if (req) {
         req.onreadystatechange = processReqChange_Contract;
         req.open("GET", url, true);
         req.send();
      }
   }
}

function processReqChange_Contract() {
   // only if req shows "complete"
   if (req.readyState == 4) {
      // only if "OK"
      if (req.status == 200) {
         // ...processing statements go here
         response  = req.responseXML.documentElement;
         if(response) {
            var result = new Array();
            for(i=0; i < response.getElementsByTagName('id').length; i++){
               result[i] = {'id': response.getElementsByTagName('id')[i].firstChild.data, 'title': response.getElementsByTagName('title')[i].firstChild.data};

            }
            //alert(response.getElementsByTagName('id').value);
            loadResult_Contract('',result);
         }
      } else {
         alert("There was a problem retrieving the XML data:\n" + req.statusText);
      }
   }
}

function loadResult_Contract(url, result){

   var field_1 = 'organization_id';
   var field_2 = 'table_organization_name';


   if (result != ''){
      // Response mode
      for(i=0; i < result.length; i++){
         document.getElementById(field_1).value = result[i].id;
         document.getElementById(field_2).innerHTML = result[i].title;
      }
   } else if(url != '') {
      // Input mode
      return (loadXMLDoc_Contract(url));
   }
}