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

var bouncelimit=0; //(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;
crossobj.visibility=(dom||ie)? "visible" : "show";

crossobj2=(dom)?document.getElementById("main").style : ie? document.all.main : document.main;
crossobj2.visibility=(dom||ie)? "hidden" : "hide";
crossobj2.height = 0+"px";
crossobj2.overflow = "hidden";
crossobj4=(dom)?document.getElementById("page_margin") : ie? document.all.page_margin : document.page_margin;
wheight =(ie)? document.body.clientHeight : window.innerHeight;
crossobj3=(dom)?document.getElementById("popup").style : ie? document.all.popup : document.popup;
crossobj3.height = 440+"px";
}

function dropin(){
scroll_top=(ie)? truebody().scrollTop : window.pageYOffset;
if (parseInt(crossobj.top)<185+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";
crossobj2.visibility="visible";

crossobj2.height = "auto";
crossobj3.height= 0+"%";

}

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;
}

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