var aktualna_zalozka=1;

function nacitanie_dat(zalozka,page){

       if (window.XMLHttpRequest){// code for IE7+, Firefox, Chrome, Opera, Safari
          xmlhttp=new XMLHttpRequest();
       }
       else{// code for IE6, IE5
          xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
       }
        
       xmlhttp.onreadystatechange=function(){
          if (xmlhttp.readyState==4 && xmlhttp.status==200){
                var text=xmlhttp.responseText;  
                document.getElementById("panel_obsah").innerHTML=text;
          }
       }
       xmlhttp.open("GET",page,true);
       xmlhttp.send();
       if(zalozka!=0)otvor_zalozku(zalozka);
       
}

function otvor_zalozku(index){

    document.getElementById("zalozka_"+aktualna_zalozka).className="panel_zalozka_close";
    document.getElementById("zalozka_"+index).className="panel_zalozka_open";
    aktualna_zalozka = index;

}


function odosli_post(url, parameters){
       
       if (window.XMLHttpRequest){// code for IE7+, Firefox, Chrome, Opera, Safari
          xmlhttp=new XMLHttpRequest();
       }
       else{// code for IE6, IE5
          xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
       }
        
       xmlhttp.onreadystatechange=function(){
          if (xmlhttp.readyState==4 && xmlhttp.status==200){
                var text=xmlhttp.responseText;  
                document.getElementById("panel_obsah").innerHTML=text;
          }
       }
       xmlhttp.open("POST",url,true);
       xmlhttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded; charset=Windows-1200");
       xmlhttp.setRequestHeader("Accept-Charset", "windows-1250,utf-8;q=0.7,*;q=0.7");
       xmlhttp.setRequestHeader("Content-length", parameters.length);
       xmlhttp.setRequestHeader("Connection", "close");
       xmlhttp.send(parameters);
       
}
/*
function odosli_post(url, parameters) {
      http_request = false;
      if (window.XMLHttpRequest) { // Mozilla, Safari,...
         http_request = new XMLHttpRequest();
         if (http_request.overrideMimeType) {
         	// set type accordingly to anticipated content type
            //http_request.overrideMimeType('text/xml');
            http_request.overrideMimeType('text/html');
         }
      } else if (window.ActiveXObject) { // IE
         try {
            http_request = new ActiveXObject("Msxml2.XMLHTTP");
         } catch (e) {
            try {
               http_request = new ActiveXObject("Microsoft.XMLHTTP");
            } catch (e) {}
         }
      }
      if (!http_request) {
         alert('Cannot create XMLHTTP instance');
         return false;
      }
      
      //http_request.onreadystatechange = alertContents;
      http_request.open('POST', url, true);
      http_request.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
      http_request.setRequestHeader("Content-length", parameters.length);
      http_request.setRequestHeader("Connection", "close");
      http_request.send(parameters);
   }
*/

function odosli_spravu() {

      var parameters = "komu=" + encodeURI( document.getElementById("komu").value ) +
                       "&predmet=" + encodeURI( document.getElementById("predmet").value ) +
                       "&text=" + encodeURI( document.getElementById("sprava").value );
     odosli_post('spravy_ajax.php', parameters);
  //   alert(parameters);
}