var XMLHttpRequestObject = false; 

      if (window.XMLHttpRequest) {
        XMLHttpRequestObject = new XMLHttpRequest();
      } else if (window.ActiveXObject) {
        XMLHttpRequestObject = new ActiveXObject("Microsoft.XMLHTTP");
      }

      function change_cal(men)
      {       
        var url = "index.php?menesis=" + men;
        var obj = document.getElementById("cal"); 
        
        if(XMLHttpRequestObject) {
          XMLHttpRequestObject.open("GET", url, true); 

          XMLHttpRequestObject.onreadystatechange = function() 
          {
            if (XMLHttpRequestObject.readyState == 1)
              obj.innerHTML = '<table width="100%" height="190"><tr><td align="center"><img src="images/website/kalendorius_loading.gif"></td></tr></table>';
             
            if (XMLHttpRequestObject.readyState == 4 && 
              XMLHttpRequestObject.status == 200) { 
            //var xmlDocument = XMLHttpRequestObject.responseXML;
            obj.innerHTML = XMLHttpRequestObject.responseText;
            //alert (obj.innerHTML); 
            } 
          } 

          XMLHttpRequestObject.send(null); 
        }
      }
      
      function change_blog_cal(men, lang, cid)
      {       
        var url = "index.php?menesis=" + men + "&type=blog&lang=" + lang + "&cid=" + cid;
        var obj = document.getElementById("blog"); 
        
        if(XMLHttpRequestObject) {
          XMLHttpRequestObject.open("GET", url, true); 

          XMLHttpRequestObject.onreadystatechange = function() 
          {
            if (XMLHttpRequestObject.readyState == 1)
              obj.innerHTML = '<table width="220" height="150"><tr><td align="center"><img src="images/website/kalendorius_loading.gif"></td></tr></table>';
             
            if (XMLHttpRequestObject.readyState == 4 && 
              XMLHttpRequestObject.status == 200) { 
            //var xmlDocument = XMLHttpRequestObject.responseXML;
            obj.innerHTML = XMLHttpRequestObject.responseText;
            //alert (obj.innerHTML); 
            } 
          } 

          XMLHttpRequestObject.send(null); 
        }
      }