// 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 $0(x) {
	return document.getElementById(x);
}

function scrollFix() {
	var obol = $0('ol');
	obol.style.top = posTop() + 'px';
	obol.style.left = posLeft() + 'px'
}

function sizeFix() {
	var obol = $0('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 = $0('ol');
	var obbxd = $0('mbd');
	obbxd.innerHTML = $0(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 = $0('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';
	$0('ol').style.display = n;
	$0('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);
}