var dropin_ie=document.all
var dropin_dom=document.getElementById
var dropin_ns4=document.layers
var dropin_bouncelimit
var dropinOver40
var dropin_width


var winW, winH
if (parseInt(navigator.appVersion)>3) {
 if (navigator.appName=="Netscape") {
  winW = window.innerWidth-16;
  winH = window.innerHeight-16;
 }
 if (navigator.appName.indexOf("Microsoft")!=-1) {
  winW = document.body.offsetWidth-20;
  winH = document.body.offsetHeight-20;
 }
}


function initbox(){
if (!dropin_dom&&!dropin_ie&&!dropin_ns4)
return
dropin_crossobj=(dropin_dom)?document.getElementById("dropin").style : dropin_ie? document.all.dropin : document.dropin
scroll_top=(dropin_ie)? document.body.scrollTop+dropinOver40 : window.pageYOffset+dropinOver40
dropin_crossobj.top=scroll_top-250
dropin_crossobj.left=(winW-dropin_width)/2
dropin_crossobj.visibility=(dropin_dom||dropin_ie)? "visible" : "show"
dropstart=setInterval("dropin()",50)
}

function dropin(){
scroll_top=(dropin_ie)? document.body.scrollTop+dropinOver40 : window.pageYOffset+dropinOver40
if (parseInt(dropin_crossobj.top)<dropinOver40+scroll_top)
dropin_crossobj.top=parseInt(dropin_crossobj.top)+40
else{
clearInterval(dropstart)
bouncestart=setInterval("bouncein()",50)
}
}

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

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

  var oldonload = window.onload;
  if (typeof window.onload != 'function') {
    window.onload = initbox;
  } else {
    window.onload = function() {
      if (oldonload) {
        oldonload();
      }
      initbox();
    }
  }