// Modal Dialog Box
// copyright 8th July 2006 by Stephen Chapman
// http://javascript.about.com/
// permission to use this Javascript on your web page is granted
// provided that all of the code in this script (including these
// comments) is used without any alteration
function pageWidth() {
    return window.innerWidth != null ? window.innerWidth : document.documentElement && document.documentElement.clientWidth ? document.documentElement.clientWidth : document.body != null ? document.body.clientWidth : null; 
}

function pageHeight() {
    return window.innerHeight != null ? window.innerHeight : document.documentElement && document.documentElement.clientHeight ? document.documentElement.clientHeight : document.body != null ? document.body.clientHeight : null; 
}

function posLeft() {
    return typeof window.pageXOffset != 'undefined' ? window.pageXOffset : document.documentElement && document.documentElement.scrollLeft ? document.documentElement.scrollLeft : document.body.scrollLeft ? document.body.scrollLeft : 0; 
}

function posTop() {
    return typeof window.pageYOffset != 'undefined' ? window.pageYOffset : document.documentElement && document.documentElement.scrollTop ? document.documentElement.scrollTop : document.body.scrollTop ? document.body.scrollTop : 0;
}

function $(x) {
    return document.getElementById(x);
}

function scrollFix() {
    var obol = $('ol'); 
    obol.style.top = posTop() + 'px';
    obol.style.left = posLeft() + 'px'; 
}

function sizeFix() {
    var obol = $('ol'); 
    obol.style.height = pageHeight() + 'px';
    obol.style.width = pageWidth() + 'px';
}

function kp(e) {
    ky = e ? e.which : event.keyCode;
    if (ky == 88 || ky == 120) hm();
    return false;
}
    
function inf(h) {
    tag = document.getElementsByTagName('select');
    for (i = tag.length - 1; i >= 0; i--) tag[i].style.visibility = h;
    tag = document.getElementsByTagName('iframe');
    for (i = tag.length - 1; i >= 0; i--) tag[i].style.visibility = h;
    tag = document.getElementsByTagName('object');
    for (i = tag.length - 1; i >= 0; i--) tag[i].style.visibility = h;
}

function sm(obl, wd, ht) {
    var h = 'hidden';
    var b = 'block';
    var p = 'px';
    var obol = $('ol');
    var obbxd = $('mbd');
    obbxd.innerHTML = $(obl).innerHTML;
    obol.style.height = pageHeight() + p;
    obol.style.width = pageWidth() + p;
    obol.style.top = posTop() + p;
    obol.style.left = posLeft() + p;
    obol.style.display = b;
    var tp = posTop() + ((pageHeight() - ht) / 2) - 12;
    var lt = posLeft() + ((pageWidth() - wd) / 2) - 12;
    var obbx = $('mbox');
    obbx.style.top = (tp < 0 ? 0 : tp) + p;
    obbx.style.left = (lt < 0 ? 0 : lt) + p; 
    obbx.style.width = wd + p;
    obbx.style.height = ht + p; inf(h);
    obbx.style.display = b; 
    return false;
}

function hm() {
    var v = 'visible';
    var n = 'none'; 
    $('ol').style.display = n;
    $('mbox').style.display = n;
    inf(v); document.onkeypress = ''
} 

function initmb() {
    var ab = 'absolute';
    var n = 'none';
    var obody = document.getElementsByTagName('body')[0];
    var frag = document.createDocumentFragment();
    var obol = document.createElement('div');
    obol.setAttribute('id', 'ol'); 
    obol.style.display = n;
    obol.style.position = ab;
    obol.style.top = 0;
    obol.style.left = 0;
    obol.style.zIndex = 998;
    obol.style.width = '100%';
    frag.appendChild(obol);
    var obbx = document.createElement('div');
    obbx.setAttribute('id', 'mbox');
    obbx.style.display = n;
    obbx.style.position = ab;
    obbx.style.zIndex = 999;
    var obl = document.createElement('span');
    obbx.appendChild(obl);
    var obbxd = document.createElement('div');
    obbxd.setAttribute('id', 'mbd');
    obl.appendChild(obbxd);
    frag.insertBefore(obbx, obol.nextSibling); 
    obody.insertBefore(frag, obody.firstChild);
    window.onscroll = scrollFix; 
    window.onresize = sizeFix;
}

function okSelected() {

}

window.onload = initmb;