var ie=document.all 
var dom=document.getElementById 
var ns4=document.layers 

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

function initbox(){ 
if (!dom&&!ie&&!ns4) 
return 
crossobj=(dom)?document.getElementById("dropin").style : ie? document.all.dropin : document.dropin 
scroll_top=(ie)? document.body.scrollTop : window.pageYOffset 
crossobj.top=scroll_top-250 
crossobj.visibility=(dom||ie)? "visible" : "show" 
dropstart=setInterval("dropin()",50) 
} 

function dropin(){ 
scroll_top=(ie)? document.body.scrollTop : window.pageYOffset 
if (parseInt(crossobj.top)<200+scroll_top) 
crossobj.top=parseInt(crossobj.top)+100
else{ 
clearInterval(dropstart) 
bouncestart=setInterval("bouncein()",50) 
} 
} 

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

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


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; 
} 

function dropornot(){
if (get_cookie("droppedin")==""){
window.onload=initbox
document.cookie="droppedin=yes"
}
}
dropornot()