//***********************************************
//* Amazon style Drop-in content box- © 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
//***********************************************/

var ie=document.all
var dom=document.getElementById
var ns6=document.getElementById&&!document.all
var dropinscreenwidth=ns6? window.innerWidth-20 : document.body.clientWidth;
var dropinscreenheight=ns6? window.innerHeight-20 : document.body.clientHeight;

var dropinautodismiss=20000 //Milliseconds to autodismiss
var dropinscreenrefx=dropinscreenwidth/2-205;
var dropinscreenrefy=dropinscreenheight/2;

var dropboxleft=dropinscreenrefx //set left position of box (in px)
var dropboxtop=0 //set top position of box (in px)
var dropspeed=50 //set speed of drop animation (larger=faster)

//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="oncepersession"

///Don't edit beyond here///////////

if (parseInt(displaymode)!=NaN)
	var random_num=Math.floor(Math.random()*displaymode)

function initboxv2(){

  if (!dom&&!ie)
    return

	crossboxcover=(dom)?document.getElementById("dropinboxv2cover"): document.all.dropinboxv2cover
  crossbox=(dom)?document.getElementById("dropinboxv2"): document.all.dropinboxv2
  scroll_top=(ie)? truebody().scrollTop : window.pageYOffset
  crossbox.height=crossbox.offsetHeight
  crossboxcover.style.height=parseInt(crossbox.height)+"px"
  crossbox.style.top=crossbox.height*(-1)+"px"
  crossboxcover.style.left=dropboxleft+"px"
  crossboxcover.style.top=dropboxtop+"px"
  crossboxcover.style.visibility=(dom||ie)? "visible" : "show"
  dropstart=setInterval("dropinv2()",50)
}

function dropinv2(){

  scroll_top=(ie)? truebody().scrollTop : window.pageYOffset
  if (parseInt(crossbox.style.top)<0){
    crossboxcover.style.top=scroll_top+dropboxtop+"px"
		crossbox.style.top=parseInt(crossbox.style.top)+dropspeed+"px"
	} else {
		clearInterval(dropstart)
		crossbox.style.top=0
	}
	if (dropinautodismiss>0) dismissstart=setInterval("dismissboxv2()",dropinautodismiss)
}

function dismissboxv2(){
	if (window.dropstart) clearInterval(dropstart)
		crossboxcover.style.visibility="hidden"
}

function truebody(){
	return (document.compatMode && document.compatMode!="BackCompat")? document.documentElement : document.body
}

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("droppedinv2")=="" || displaymode=="always" || parseInt(displaymode)!=NaN && random_num==0) && get_cookie("SplashID")==""){

	if (window.addEventListener)
		window.addEventListener("load", initboxv2, false)
	else if (window.attachEvent)
		window.attachEvent("onload", initboxv2)
	else if (document.getElementById || document.all)
		window.onload=initboxv2

	if (displaymode=="oncepersession")
		document.cookie="droppedinv2=yes"

}

function dismissbox(usecookie,splashID,splashExpires){
	if (window.dropstart) clearInterval(dropstart)
		crossboxcover.style.visibility="hidden"
	if (usecookie) {
		expires = new Date()
		expires.setTime(Date.parse(splashExpires))
		document.cookie = "SplashID="+escape(splashID)+"; expires="+expires.toGMTString()+"; domain=.homeschoolfoundation.org;"
	}
}

function divBGColor(newcolor){
        if(document.layers){
            document.PromoBox.background=newcolor;
        }
        if(document.all){
            document.all.PromoBox.style.background=newcolor;
        }
        if(!document.all && document.getElementById){
            document.getElementById('PromoBox').style.background=newcolor;
        }
}