function popup(name)
{
  window.open("show_img.php?"+name, "foto","tollbar=no,menubar=no,location=no,personalbar=no,scrollbars=no,status=no,resizable=no");
} 

function popup2(name)
{
  window.open("show_img.php?"+name, "foto","tollbar=no,menubar=no,location=no,personalbar=no,scrollbars=yes,status=yes,resizable=yes");
}

function dodaj_do_ulubionych()
{
 if( document.all )
    window.external.AddFavorite(location.href, document.title);
 else if( window.sidebar )
    window.sidebar.addPanel(document.title, location.href, "");
} // dodaj_do_ulubionych()


function ustaw_jako_startowa()
{
  if (navigator.appName == "Netscape"){
    alert("Ze względów bezpieczeństwa ta funkcja nie jest dostępna pod przeglądarkami z rodziny Mozilla oraz Netscape.");
  } else {
    document.body.style.behavior='url(#default#homepage)';
    document.body.setHomePage(location.href);
  }
} // ustaw_jako_startowa()

function popup2(nazwa, w, h)
{
 var pos_y = (screen.height/2)-(h/2);
 var pos_x = (screen.width/2)-(w/2);
 if( pos_y < 0 ) pos_y = 0;
 if( pos_x < 0 ) pos_x = 0;
 window.open("popup.php?mode=" + nazwa, "","tollbar=no,menubar=no,location=no,personalbar=no,scrollbars=no,status=no,resizable=no,width="+ w +",height="+ h +", top="+ pos_y +",left="+ pos_x);
} 

function unCheckAll(masterchb,chb){
var checked = masterchb.checked;
var col = document.getElementsByName(chb);
for (var i=0;i<col.length;i++) {
col[i].checked= checked;
}
}

function blockEnter(evt) {
    evt = (evt) ? evt : event;
    var charCode = (evt.charCode) ? evt.charCode :
        ((evt.which) ? evt.which : evt.keyCode);
    if (charCode == 13) {
        return false;
    } else {
        return true;
    }
}

function createCookie(name,value,days) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(5*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else var expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}

function eraseCookie(name) {
	createCookie(name,"",-1);
}