// JavaScript Document
function aaa(a){

}
 function ajax(stranka, kam)
{

    var httpRequest;
    
    if(typeof window.ActiveXObject != 'undefined')
    {
        httpRequest = new ActiveXObject("Microsoft.XMLHTTP");
    }
    else
    {  
        httpRequest = new XMLHttpRequest();
    }
    httpRequest.open("GET", stranka, true);
    httpRequest.onreadystatechange= function () 
    {
        processRequest(httpRequest, kam) 
    };
    httpRequest.send(null);
}


function processRequest(httpRequest, kam) 
{
    if (httpRequest.readyState == 4)
    {
        if(httpRequest.status == 200)
        {
            if (typeof kam == 'string') 
            {
                document.getElementById(kam).innerHTML = httpRequest.responseText;
            }
            if (typeof kam == 'function') 
            {
                kam(httpRequest.responseText);
            }
        }
        else
        {
            alert("Chyba pri nacitani stanky " + httpRequest.status +" : "+ httpRequest.statusText);
        }
    }
    else
    {
        if (typeof kam == 'string' && kam != '') 
        {
            document.getElementById(kam).innerHTML = 'Čekejte...';
        }
    }
       
}
function zpracujkupon(ok){
 if(ok==1){
 document.getElementById('kuponresponse').innerHTML = "Váš kupon je platný, z vaší ceny bylo strženo 5%";
 document.getElementById('kuponresponse').style.backgroundColor = " 	#00FF66";
 document.getElementById('kuponresponse').style.color = "black";
 var celkem = parseFloat(document.getElementById('total_price_dph').value);
 var max = 100;
 if(document.getElementById('postovne').value == ""){document.getElementById('postovne').value=0;}
  max += parseFloat(document.getElementById('sleva_klub').value);
  max -= 5; 
  
 celkem = parseFloat(((celkem/100)*max));

 celkem += parseFloat(document.getElementById('elektroodpad').value);

 celkem += parseFloat(document.getElementById('postovne').value); 
 celkem = parseFloat(Math.round(celkem*100)/100);
 
 document.getElementById('celkovacena_html').innerHTML = celkem+" Kč";
 document.getElementById('kupon_submit').style.visibility="hidden";
 document.getElementById('kupon_hid').value=document.getElementById('kupon').value; 
 document.getElementById('kupon').disabled= true; 
 }else{
 document.getElementById('kuponresponse').innerHTML = "Váš kupon NENÍ platný, zkuste jej napsat ještě jednou";
 document.getElementById('kuponresponse').style.backgroundColor = "#FF6600";
 document.getElementById('kuponresponse').style.color = "black";
 }
}