var displaymode="oncepersession"
var enablefade="yes" //("yes" to enable fade in effect, "no" to disable)
var autohidebox=["no", 5] //Automatically hide box after x seconds? [yes/no, if_yes_hide_after_seconds]
var showonscroll="yes" //Should box remain visible even when user scrolls page? ("yes"/"no)
var IEfadelength=1 //fade in duration for IE, in seconds
var Mozfadedegree=0.05 //fade in degree for NS6+ (number between 0 and 1. Recommended max: 0.2)

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;

}





if (displaymode=="oncepersession" && get_cookie("fadedin")=="" || displaymode=="always" || parseInt(displaymode)!=NaN && random_num==0){

if (window.addEventListener)

window.addEventListener("load", initfunction, false)

else if (window.attachEvent)

window.attachEvent("onload", initfunction)

else if (document.getElementById)

window.onload=initfunction

document.cookie="fadedin=yes"

}