window.onerror = function () {return true};
var preload = new Image().src = "/img/system/preloader.gif";
function imgPreview(e,el,path,border) {
    /** Nahled obrazku u kurzoru mysi
     * @copyright Marek Svarc, svarc.marek@tiscali.cz
     */
    if (!e) e = window.event;
    var posx = e.pageX ? e.pageX : e.clientX;
    var posy = e.pageY ? e.pageY : e.clientY;
    if (document.all) posy += document.body.scrollTop; // IE
    // nahled
    if (!document.getElementById("ImgPreview")) {
        obj = document.createElement("div");
        obj.id = "ImgPreview";
        obj.style.position = "absolute";
        obj.style.top = posy + 10;
        obj.style.left = posx + 10;
        obj.innerHTML = "<img src='" + preload + "' id='imgPreload'><img src='" + path + "' border='" + border + "' style='visibility:hidden; position:absolute; left:0' onLoad=\"this.style.visibility='visible'; document.getElementById('imgPreload').style.display='none'\">";
        document.body.appendChild(obj);
    } else { // position update
        obj.style.top = posy + 10;
        obj.style.left = posx + 10;
    }
    el.onmouseout = function () {document.body.removeChild(obj)}
}