/***********************************************
* 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=["yes", 3] //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)

////////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"
}