var expDays = 60;
var enablefade="yes"
var showonscroll="yes"
var fadeDegree=0.05
var exp = new Date();
exp.setTime(exp.getTime() + (expDays*24*60*60*1000));

function displayfadeinbox(){
	var ie=document.all
	var dom=document.getElementById
	iebody=(document.compatMode=="CSS1Compat")? document.documentElement : document.body
	objref=(dom)? document.getElementById("fadediv") : document.all.fadediv
	var scroll_top=(ie)? iebody.scrollTop : window.pageYOffset
	var docwidth=(ie)? iebody.clientWidth : window.innerWidth
	docheight=(ie)? iebody.clientHeight: window.innerHeight
	var objwidth=objref.offsetWidth
	objheight=objref.offsetHeight
	objref.style.left=docwidth/2-objwidth/2+"px"
	objref.style.top=scroll_top+docheight/2-objheight/2+"px"
	if (showonscroll=="yes")
		showonscrollvar=setInterval("staticfadebox()", 50)
	setOpacity(0);
	objref.style.visibility="visible"
	if (enablefade=="yes")
			fade()
	else
		objref.style.opacity=1
	
}

function setOpacity(level) {
	objref.style.opacity = level;
	objref.style.MozOpacity = level;
	objref.style.KhtmlOpacity = level;
	objref.style.filter = "alpha(opacity=" + (level * 100) + ");";
}

function fade(){
	for (i = 0; i <= 1; i += (1 / 20)) {
		setTimeout("setOpacity(" + i + ")", i * 3000);
	}
}

function staticfadebox(){
	var ie=document.all
	var scroll_top=(ie)? iebody.scrollTop : window.pageYOffset
	objref.style.top=scroll_top+docheight/2-objheight/2+"px"
}

function hidefadebox(){
	objref.style.visibility="hidden"
	if (typeof showonscrollvar!="undefined")
		clearInterval(showonscrollvar)
}

function initfunction(){
	setTimeout("displayfadeinbox()", 10) //100
}

function get_cookie(Name) {
	var search = Name + "="
	var returnvalue = ""
	if (document.cookie.length > 0) {
		offset = document.cookie.indexOf(search)
		if (offset != -1) {
			offset += search.length
			end = document.cookie.indexOf(";", offset)
			if (end == -1)
				end = document.cookie.length;
			returnvalue=unescape(document.cookie.substring(offset, end))
		}
	}
	return returnvalue;
}

function set_cookie (name, value) {
  var argv = set_cookie.arguments;
  var argc = set_cookie.arguments.length;
  var expires = (argc > 2) ? argv[2] : null;
  var path = (argc > 3) ? argv[3] : null;
  var domain = (argc > 4) ? argv[4] : null;
  var secure = (argc > 5) ? argv[5] : false;
  document.cookie = name + "=" + escape (value) +
    ((expires == null) ? "" : ("; expires=" + expires.toGMTString())) +
    ((path == null) ? "" : ("; path=" + path)) +
    ((domain == null) ? "" : ("; domain=" + domain)) +
    ((secure == true) ? "; secure" : "");
}

if (get_cookie("already_visited")==""){
	if (window.addEventListener)
		window.addEventListener("load", initfunction, false)
	else if (window.attachEvent)
		window.attachEvent("onload", initfunction)
	else if (document.getElementById)
		window.onload=initfunction
  set_cookie('already_visited', 1, exp);
}