function obr_preview_on(obr)
{
    preview_pic.style.display = "block";
    preview_pic.src = obr;
}
function obr_preview_off()
{
  preview_pic.style.display = "none";
}
function vyrinfo(id)
{
  var windowW=700;
  var windowH=600;
  var windowX = (screen.width/2)-(windowW/2);
  var windowY = (screen.height/2)-(windowH/2)-50;
     window.open('vyrobok.php?id='+id+'&lang='+jazyk+'&id_lang='+idjazyk+'&zalozka='+sekc, '_blank', 'scrollbars,resizable,width='+windowW+', height='+windowH+', top='+windowY+', screenY='+windowY+', left='+windowX+', screenX='+windowX);
}
function obr_show(obr)
{
  var windowW=100;
  var windowH=100;
  var windowX = 20; //(screen.width/2)-(windowW/2);
  var windowY = 20; //(screen.height/2)-(windowH/2)-50;
     window.open('../obr.php?id='+obr, '_blank', 'scrollbars,resizable,width='+windowW+', height='+windowH+', top='+windowY+', screenY='+windowY+', left='+windowX+', screenX='+windowX);  
}
function setWindow() {
    imgx = document.img.width;
    imgy = document.img.height;
    if(document.img.width > 984)  { imgx = 1024; } else { imgx += 40; }
    if(document.img.height > 723) { imgy = 768; }  else { imgy += 55; }
    window.resizeTo(imgx, imgy)
}
function upravText(obj)
{
    var sFeatures = "dialogHeight: 580px; dialogWidth: 770px; dialogTop: 10px; dialogLeft: 10px; edge: Raised; center: Yes; help: Yes; resizable: Yes; status: Yes;";
    var myObject = new Object();
    myObject.textik = obj.value;
    vReturnValue = window.showModalDialog("uprava.php",myObject,sFeatures);
    if(vReturnValue!="")
      obj.value = vReturnValue;
}