// JavaScript Document

function ShowImg(img,width,height)
{
	var url = img;
	var win = window.open(	url,
							"WNSImageWindow",
							"height="+height+", width="+width+", toolbar=no, status=yes, resizable=yes");
	if (win) win.focus();
}


function zmenaKraje()
{
		document.getElementById("pismena").value="-1";
		document.getElementById("kluby").innerHTML = "";
    document.getElementById("misto").readOnly=false;
		document.getElementById("misto").style.backgroundColor="#ffffff";
		document.getElementById("mesto").readOnly=false;
				document.getElementById("mesto").style.backgroundColor="#ffffff";
}

function zmenaPismenka(id_klubu)
{
     
		 var url = "/kluby_seznam.php?ch="+document.getElementById("pismena").value+"&sel="+id_klubu+"&kraj="+document.getElementById("kraj").value;

     //alert(url);
		 
		 if (url != 0 && document.getElementById("pismena").value!="-1")
     {
        if (window.ActiveXObject)
        {
          httpRequest = new ActiveXObject("Microsoft.XMLHTTP");
        }
        else
        {
          httpRequest = new XMLHttpRequest();
        }
        httpRequest.open("GET", url, true);
        httpRequest.onreadystatechange= function () {processRequest(); } ;
        httpRequest.send(null);
      }
      else
      {

        document.getElementById("kluby").innerHTML = "";
        document.getElementById("misto").readOnly=false;
				document.getElementById("misto").style.backgroundColor="#ffffff";
				document.getElementById("mesto").readOnly=false;
				document.getElementById("mesto").style.backgroundColor="#ffffff";
      }
		 
}


function processRequest()
{
  if (httpRequest.readyState == 4)
  {
    if(httpRequest.status == 200)
    {
      var kluby = document.getElementById("kluby");
			kluby.innerHTML = httpRequest.responseText;
			if (kluby.innerHTML=="") 
			{
					document.getElementById("misto").readOnly=false;
					document.getElementById("misto").style.backgroundColor="#ffffff";
					document.getElementById("mesto").readOnly=false;
					document.getElementById("mesto").style.backgroundColor="#ffffff";
			}
			else 
			{
					document.getElementById("misto").readOnly=true; 
					document.getElementById("misto").style.backgroundColor="#e0e0f0";
					document.getElementById("misto").value="";
					document.getElementById("mesto").readOnly=true; 
					document.getElementById("mesto").style.backgroundColor="#e0e0f0";
					document.getElementById("mesto").value="";
			}
      //alert(httpRequest.responseText);
    }
    else
    {
        alert("Chyba pri nacitani stanky"+ httpRequest.status +":"+ httpRequest.statusText);
    }
  }
}