function confirmAction(action) {

    if (action == undefined) action = "удаление";

    if (confirm("Вы подтверждаете "+action+"?")) {
        return true;
    } else {
        return false;
    }
}

function showMe(it, box) {
  var vis = (box.checked) ? "block" : "none";
  document.getElementById(it).style.display = vis;
}

function open2(url, opt) {
  if (opt == 0) // current window
    window.location = url;
  else if (opt == 1) // new window
    window.open(url);
  else if (opt == 2) // background window
    {window.open(url); self.focus();}
}

function isEmpty( inputStr ) { return !(inputStr&&inputStr.length) }


//alert(escape("удаление"));

function preload(images) {
    if (typeof document.body == "undefined") return;
    try {
        var div = document.createElement("div");
        var s = div.style;
        s.position = "absolute";
        s.top = s.left = 0;
        s.visibility = "hidden";
        document.body.appendChild(div);
        div.innerHTML = "<img src=\"" + images.join("\" /><img src=\"") + "\" />";
    } catch(e) {
        // Error. Do nothing.
        //alert(e);
    }
}

$(document).ready(function(){


    preload([
        './images/ntbg.png'
    ]);

});