var ie=document.all
var dom=document.getElementById
var ns4=document.layers
var calunits=document.layers? "" : "px"

var bouncelimit=32 //(must be divisible by 8)
var direction="up"

function initbox(){
	if (!dom&&!ie&&!ns4)
	return
	crossobj=(dom)?document.getElementById("dropin").style : ie? document.all.dropin : document.dropin
	scroll_top=(ie)? truebody().scrollTop : window.pageYOffset
	crossobj.top=scroll_top-60+calunits
	crossobj.visibility=(dom||ie)? "visible" : "show"
	dropstart=setInterval("dropin()",50)
}

function dropin(){
	scroll_top=(ie)? truebody().scrollTop : window.pageYOffset
	if (parseInt(crossobj.top)<240+scroll_top){
	crossobj.top=parseInt(crossobj.top)+40+calunits
	}
	else{
	clearInterval(dropstart)
	bouncestart=setInterval("bouncein()",50)
	}
}

function bouncein(){
	crossobj.top=parseInt(crossobj.top)-bouncelimit+calunits
	if (bouncelimit<0)
	bouncelimit+=8
	bouncelimit=bouncelimit*-1
	if (bouncelimit==0){
	clearInterval(bouncestart)
	}
}

function dismissbox(){
	if (window.bouncestart) clearInterval(bouncestart)
	crossobj.visibility="hidden"
}

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

window.onload=initbox