function move_box(an, box)   
{   
    var cleft = 0;   
    var ctop = 0;   
    var obj = an;   
  
    while (obj.offsetParent)   
    {   
        cleft += obj.offsetLeft;   
        ctop += obj.offsetTop;   
        obj = obj.offsetParent;   
    }   
  
    box.style.left = cleft + 'px';   
  
    ctop += an.offsetHeight + 0;   
  
    if (document.body.currentStyle &&   
        document.body.currentStyle['marginTop'])   
    {   
        ctop += parseInt(   
            document.body.currentStyle['marginTop']);   
    }   
  
    box.style.top = ctop + 'px';   
}   
  
function hide_other_alone(obj)   
{   
    if (!document.getElementsByTagName)   
        return;   
  
    var all_divs = document.body.getElementsByTagName("DIV");   
  
    for (i = 0; i < all_divs.length; i++)   
    {   
        if (all_divs.item(i).style.position != 'absolute' ||   
            all_divs.item(i) == obj ||   
            !all_divs.item(i).alonePopupBox)   
        {   
            continue;   
        }   
  
        all_divs.item(i).style.display = 'none';   
    }   
    return;   
}   
  
function show_hide_box(an, width, height, borderStyle)   
{   
    var href = an.href;   
    var boxdiv = document.getElementById(href);   
  
    if (boxdiv != null)   
    {   
        if (boxdiv.style.display=='none')   
        {   
            hide_other_alone(boxdiv);   
            move_box(an, boxdiv);   
            boxdiv.style.display='block';   
  
            if (!boxdiv.contents.contentWindow)   
                boxdiv.contents.src = href;   
        }   
        else  
            boxdiv.style.display='none';   
        return false;   
    }   
  
    hide_other_alone(null);   
  
    boxdiv = document.createElement('div');   
  
    boxdiv.setAttribute('id', href);   
  
    boxdiv.alonePopupBox = 1;   
  
    boxdiv.style.display = 'block';   
    boxdiv.style.position = 'absolute';   
    boxdiv.style.width = width + 'px';   
    boxdiv.style.height = height + 'px';   
    boxdiv.style.border = borderStyle;   
    boxdiv.style.textAlign = 'right';   
    boxdiv.style.padding = '0px';   
    boxdiv.style.background = '#ffffff';   
    document.body.appendChild(boxdiv);   
  
    var offset = 0;   
  
    var close_href = document.createElement('a');   
    close_href.href = 'javascript:void(0);';   
    close_href.onclick = function()   
        { show_hide_box(an, width, height, borderStyle); }   
    close_href.appendChild(document.createTextNode('Bezár'));   
    boxdiv.appendChild(close_href);   
    offset = close_href.offsetHeight;   
  
    var contents = document.createElement('iframe');   
    contents.overflowX = 'hidden';   
    contents.overflowY = 'scroll';   
    contents.frameBorder = '0';   
    contents.style.width = width + 'px';   
    contents.style.height = (height - offset) + 'px';   
  
    boxdiv.contents = contents;   
    boxdiv.appendChild(contents);   
  
    move_box(an, boxdiv);   
  
    if (contents.contentWindow)   
        contents.contentWindow.document.location.replace(   
            href);   
    else  
        contents.src = href;   
 
    return false;   
}