//Lightboxy
$(document).ready(function(){
      $("a[rel='lightbox-byty']").colorbox();
      $("a[rel='lightbox - certifikaty']").colorbox();
});


function el(co){
    return document.getElementById(co);
}
function ajax(adr,vystup,outer){
    xmlHttp=httpObject();
    xmlHttp.onreadystatechange=function(){
                 if (xmlHttp.readyState==4){
                     if(vystup){
                          if(!outer) el(vystup).innerHTML=xmlHttp.responseText; 
                          else el(vystup).outerHTML=xmlHttp.responseText; 
                    }
                 }       
     }                                                                              
    xmlHttp.open("GET",adr,true);
    xmlHttp.send(null);
    
}

function httpObject(){
    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 Control(pole){
    ok=true;
    for(i=0;i<pole.length;i++){
        if(el(pole[i]) && !el(pole[i]).value)ok=false;
    }
    if(ok)return true;
    else {alert("Nezadal jste všechny povinné položky!");return false;}
}