function trim(inputString)
{
if (typeof inputString != "string") return inputString;
var retValue = inputString;
var ch = retValue.substring(0, 1);
while (ch == " ")
  {
  retValue = retValue.substring(1, retValue.length);
  ch = retValue.substring(0, 1);
  }
ch = retValue.substring(retValue.length - 1, retValue.length);
while (ch == " ")
  {
  retValue = retValue.substring(0, retValue.length - 1);
  ch = retValue.substring(retValue.length - 1, retValue.length);
  }
while (retValue.indexOf("  ") != -1)
  retValue = retValue.substring(0, retValue.indexOf("  ")) + retValue.substring(retValue.indexOf("  ") + 1, retValue.length);
return retValue;
}

function set_cookie ( name, value, exp_seconds, path, domain, secure )
{
  var cookie_string = name + "=" + escape ( value );

  if ( exp_seconds )
  {
    var expires = new Date ();
    ex=expires.valueOf()+exp_seconds*1000;
    expires = new Date (ex);
    cookie_string += "; expires=" + expires.toGMTString();
  }

  if ( path )
        cookie_string += "; path=" + escape ( path );

  if ( domain )
        cookie_string += "; domain=" + escape ( domain );

  if ( secure )
        cookie_string += "; secure";

  document.cookie = cookie_string;
}
function delete_cookie ( cookie_name )
{
  var cookie_date = new Date ( );  // current date & time
  cookie_date.setTime ( cookie_date.getTime() - 1 );
  document.cookie = cookie_name += "=; expires=" + cookie_date.toGMTString();
}
function get_cookie ( cookie_name )
{
  var results = document.cookie.match ( cookie_name + '=(.*?)(;|$)' );

  if ( results )
    return ( unescape ( results[1] ) );
  else
    return null;
}

function xx_switch_lang(xlang)
{
set_cookie("lang", xlang, 86400*30);
window.location=window.location;
}


var definfoboxtext="";
var iboxfocused=false;

function iboxsend()
{
if (!iboxfocused)
  iboxfocus()
else
  {
  o=document.forms["infoboxform"];
  if (o)
    o.submit();
  }
}
function iboxfocus()
{
m=document.getElementById("defmail");
o=document.getElementById("infobox");
if ((o) && (!iboxfocused))
  {
  o.style.cursor="text";
  o.title=_infobox_hint;
  iboxfocused=true;
  definfoboxtext=o.value;
  xx=_infobox_inside;
  if (m)
    xx+=m.value;
  o.value=xx;
  o.focus();
  }
}
function resetInfobox()
{
o=document.getElementById("infobox");
if ((o) && (iboxfocused))
  {
  iboxfocused=false;
  o.value=definfoboxtext;
  }
}

function xzoom(a,xid,xidx)
{
if (!xidx) xidx="";
  else xidx="&xid="+xidx;
window.open("getimage.php?a="+a+"&id="+xid+xidx,"_blank","width=300px,height=300px");
}



function isshopkosik()
{
var o=document.getElementById("kosiktag");
var ret=false;
if (o) ret=true;
return ret;
}


function shop_ask(itemid)
{
window.open("index.php?shopinfo="+itemid,"_blank","width=550px,height=600px,resizable");
}


function shop_info(itemid,xed)
{
if (xed)
  var xadds="&ed=1";
else
  var xadds="";
window.open("index.php?shopinfo="+itemid+"&details=1"+xadds,"_blank","width=550px,height=600px,resizable");
}


function shop_add(itemid)
{
var o=document.getElementById("workframe");
var k=document.getElementById("shopksinput"+itemid);
if ((o) && (k)) o.src="index.php?shopaction=add&itemid="+itemid+"&itemks="+k.value;
}


function shop_set(itemid)
{
var o=document.getElementById("workframe");
var k=document.getElementById("shopksinput"+itemid);
if ((o) && (k)) o.src="index.php?shopaction=set&itemid="+itemid+"&itemks="+k.value;
}


function shop_del(itemid)
{
var vv=true;
if (isshopkosik())
  {
  var o=document.getElementById("shop_delete_confirm_message");
  if (o)
    var ss=o.value;
  else
    var ss="Delete ?";
  vv=confirm(ss);
  }
var o=document.getElementById("workframe");
if ((o) && (vv)) o.src="index.php?shopaction=del&itemid="+itemid;
}


function shop_delete_all()
{
var o=document.getElementById("workframe");
var c=document.getElementById("shop_delete_all_confirm_message");
if (c)
  {
  var vv=confirm(c.value);
  if ((o) && (vv)) o.src="index.php?shopaction=deleteall";
  }
}


function shop_send()
{
var o=document.getElementById("regform");
var f=document.getElementById("shopactionformsend");
if ((o) && (f))
  {
  var cansend=true;
  var e=document.getElementsByTagName("input");
  for (var i=0;i<e.length;i++)
    if (e[i].getAttribute("xneed")=="yes")
      if (trim(e[i].value)=="")
        {
        cansend=false;
        var cc=document.getElementById("shop_send_msg1");
        if (!cc)
          alert("Zvýrazněné položky jsou povinné.");
        else
          alert(cc.value);
        e[i].focus();
        break;
        }
  if (cansend)
    {
    f.value="yes";
    o.submit();
    }
  }

}