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 = $(obl).innerHTML;
	obol.style.height=pageHeight()+30 +p;
	obol.style.width=pageWidth()+p;
	obol.style.top=posTop()+p;
	obol.style.left=posLeft()+p;
	obol.style.display=b;
	var tp=posTop()+((pageHeight()-ht)/2)-12;
	var lt=posLeft()+((pageWidth()-wd)/2)-12;var obbx=$('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%';
	
	obol.style.background = 'none repeat scroll 0 0 #000000';
	obol.style.opacity = '0.5';
	obol.style.filter = 'progid:DXImageTransform.Microsoft.Alpha(opacity=50)';
	
	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');
	obbxd.style.height = 'auto';
	obl.appendChild(obbxd);
	frag.insertBefore(obbx,obol.nextSibling);
	obody.insertBefore(frag,obody.firstChild);
	window.onscroll = scrollFix; window.onresize = sizeFix;
}

function createCookie(name,value,days) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else var expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}

function initPage()
{
	initmb();
	var isShown = readCookie('shown');
	if(isShown == null)
	{
	    if($('popup') != null) 
	    {
	        sm('popup', 600, 340);
	        createCookie('shown', 'true', 365);
	    }
	    return false;
	}
}