/***********************************************
* Sticky Note script- © Dynamic Drive DHTML code library (www.dynamicdrive.com)
* Visit DynamicDrive.com for hundreds of DHTML scripts
* This notice must stay intact for legal use
* Go to http://www.dynamicdrive.com/ for full source code
***********************************************/

//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.

var displaymode="always"

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=0.1 //fade in degree for NS6+ (number between 0 and 1. Recommended max: 0.2)

////////No need to edit beyond here///////////

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"
}