var displaymode="oncepersession"
var enablefade="yes"; 
var autohidebox="no"; 
var showonscroll="yes"; 
var IEfadelength=1; 
var Mozfadedegree=0.02; 
var minutesRegexp = new RegExp("minutes", "i");
//Specify display mode. 3 possible values are:
//1) "always"- This makes the fade-in box load each time the page is displayed
//2) "oncepersession"- This uses cookies to display the fade-in box only once per browser session
//3) integer (ie: 5)- Finally, you can specify an integer to display the box randomly via a frequency of 1/integer...
// For example, 2 would display the box about (1/2) 50% of the time the page loads.
if (parseInt(displaymode)!=NaN)
var random_num=Math.floor(Math.random()*displaymode)

function displayfadeinbox() {
	var ie=document.all && !window.opera
	var dom=document.getElementById
	iebody=(document.compatMode=="CSS1Compat")? document.documentElement : document.body
	objref=(dom)? document.getElementById("fadeinbox") : document.all.fadeinbox
	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)
	}
	if (enablefade=="yes" && objref.filters) {
		objref.filters[0].duration=IEfadelength
		objref.filters[0].Apply()
		objref.filters[0].Play()
	}
	objref.style.visibility="visible"
	if (objref.style.MozOpacity) {
		if (enablefade=="yes") {
			mozfadevar=setInterval("mozfadefx()", 90)
		} else {
			objref.style.MozOpacity=1
			controlledhidebox()
		}
	} else {
		controlledhidebox()
	}
}
	
function mozfadefx() {
	if (parseFloat(objref.style.MozOpacity)<1) {
		objref.style.MozOpacity=parseFloat(objref.style.MozOpacity)+Mozfadedegree
	} else {
		clearInterval(mozfadevar)
		controlledhidebox()
	}
}

function staticfadebox() {
	var ie=document.all && !window.opera
	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 controlledhidebox() {
	if (autohidebox[0]=="yes") {
		var delayvar=(enablefade=="yes" && objref.filters)? (autohidebox[1]+objref.filters[0].duration)*1000 : autohidebox[1]*1000
		setTimeout("hidefadebox()", delayvar)
	}
}

function initfunction() {
	setTimeout("displayfadeinbox()", 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 readyToShowBox() {
	if (displaymode=="oncepersession" && get_cookie("fadedin")=="" 	|| displaymode=="always" 	|| parseInt(displaymode)!=NaN &random_num==0) {
		return true;
	}
	if (displaymode.match(minutesRegexp)) {
		faded_at = parseInt(get_cookie("faded_at"));
		minutes = parseInt(displaymode);
		seconds = minutes * 60;
		now = new Date();
		if (!get_cookie("faded_at")) {
			return true;
		}
		if ((parseInt(now.getTime() / 1000) - faded_at) >= seconds) {	
			return true;
		} 
	}
	return false;
}

if (readyToShowBox()) {
		if (window.addEventListener)
			window.addEventListener("load", initfunction, false)
		else if (window.attachEvent)
			window.attachEvent("onload", initfunction)
		else if (document.getElementById)
			window.onload=initfunction;
			faded_at = new Date();
			faded_at_ut = parseInt(faded_at.getTime() / 1000);
			document.cookie="fadedin=yes&faded_at="+faded_at_ut;
}