function GetXmlHttpObject()
{
var xmlHttp=null;
try
  {
  // Firefox, Opera 8.0+, Safari
  xmlHttp=new XMLHttpRequest();
  }
catch (e)
  {
  // Internet Explorer
  try
    {
    xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
    }
  catch (e)
    {
    xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
    }
  }
return xmlHttp;
}

function stateChanged_category() 
{ 
    if (xmlHttp.readyState==4)
    { 
        var parentElement = document.getElementById('main_section_center');
        try {
            parentElement.innerHTML = xmlHttp.responseText;
            }
        catch (e) {
            // IE fails unless we wrap the string in another element.
            var wrappingDiv = document.createElement('div');
            wrappingDiv.innerHTML = xmlHttp.responseText;
            parentElement.appendChild(wrappingDiv);
                  }
    }
}

function stateChanged_news() 
{ 
    if (xmlHttp.readyState==4)
    { 
        var parentElement = document.getElementById('news_current_content');
        try {
            parentElement.innerHTML = xmlHttp.responseText;
            }
        catch (e) {
            // IE fails unless we wrap the string in another element.
            var wrappingDiv = document.createElement('div');
            wrappingDiv.innerHTML = xmlHttp.responseText;
            parentElement.appendChild(wrappingDiv);
                  }
    }
}

////////////////////////////////////// meniu stanga
// selecteaza categoria
function sel_category(idcategory, category_name)   // idcategory: 1 based, not 0
{
document.title = category_name + " | decIT equipment";
xmlHttp=GetXmlHttpObject();
if (xmlHttp==null)
  {
  alert ("Your browser does not support AJAX!");
  return;
  } 
var url="categorii_getMainSectionCenter.aspx";
url=url+"?cat="+idcategory;
url=url+"&sid="+Math.random();
xmlHttp.open("GET",url,true);
xmlHttp.onreadystatechange=stateChanged_category;
xmlHttp.send(null);
}


// selecteaza stirea
function sel_news(idstiri)
{
xmlHttp=GetXmlHttpObject();
if (xmlHttp==null)
  {
  alert ("Your browser does not support AJAX!");
  return;
  } 
var url="stiri_getMainSectionCenter.aspx";
url=url+"?idstiri="+idstiri;
url=url+"&sid="+Math.random();
xmlHttp.open("GET",url,true);
xmlHttp.onreadystatechange=stateChanged_news;
xmlHttp.send(null);
}