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 closebar(){
var cookie_date = new Date ( );
cookie_date.setTime ( cookie_date.getTime() + 60 * 60 * 1000 * 48 );
if (persistclosecq)
document.cookie="float_closed=1;expires=" + cookie_date.toGMTString();
document.getElementById('float_reklama').style.visibility= 'hidden';
}

<script type="text/javascript">

/***********************************************
* Floating Top Bar script- © Dynamic Drive (www.dynamicdrive.com)
* Sliding routine by Roy Whittle (http://www.javascript-fx.com/)
* This notice must stay intact for legal use.
* Visit http://www.dynamicdrive.com/ for full source code
***********************************************/

var persistclose = 1 //set to 0 or 1. 1 means once the bar is manually closed, it will remain closed for browser session or daysOff
var daysOff = 1 //set days persistence for close, use null for session only
var startX = 30 //set x offset of bar in pixels
var startY = 5 //set y offset of bar in pixels
var verticalpos = "fromtop" //enter "fromtop" or "frombottom"

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

var cookie = {
  set: function(n, v, d){ // cookie.set takes (name, value, optional_persist_days) - defaults to session if no days specified
    if(d){var dt = new Date();
      dt.setDate(dt.getDate() + d);
      d = '; expires=' + dt.toGMTString();}
  document.cookie = n + '=' + escape(v) + (d || '') + '; path=/';
  },
  get: function(n){ // cookie.get takes (name)
  var c = document.cookie.match('(^|;)\x20*' + n + '=([^;]*)');
  return c? unescape(c[2]) : null;
  },
  kill: function(n){ // cookie.kill takes (name)
  cookie.set(n, '', -1);
  }
};

function closebar(){
if (persistclose)
cookie.set('remainclosed', '1', daysOff);
document.getElementById("topbar").style.visibility="hidden"
}

function staticbar(){
barheight=document.getElementById("topbar").offsetHeight
var ns = (navigator.appName.indexOf("Netscape") != -1) || window.opera;
var d = document;
function ml(id){
var el=d.getElementById(id);
if (!persistclose || !cookie.get('remainclosed'))
el.style.visibility="visible"
if(d.layers)el.style=el;
el.sP=function(x,y){this.style.left=x+"px";this.style.top=y+"px";};
el.x = startX;
if (verticalpos=="fromtop")
el.y = startY;
else{
el.y = ns ? pageYOffset + innerHeight : iecompattest().scrollTop + iecompattest().clientHeight;
el.y -= startY;
}
return el;
}
window.stayTopLeft=function(){
if (verticalpos=="fromtop"){
var pY = ns ? pageYOffset : iecompattest().scrollTop;
ftlObj.y += (pY + startY - ftlObj.y)/8;
}
else{
var pY = ns ? pageYOffset + innerHeight - barheight: iecompattest().scrollTop + iecompattest().clientHeight - barheight;
ftlObj.y += (pY - startY - ftlObj.y)/8;
}
ftlObj.sP(ftlObj.x, ftlObj.y);
setTimeout("stayTopLeft()", 10);
}
ftlObj = ml("topbar");
stayTopLeft();
}

if (window.addEventListener)
window.addEventListener("load", staticbar, false)
else if (window.attachEvent)
window.attachEvent("onload", staticbar)
else if (document.getElementById)
window.onload=staticbar
</script>

<div id="topbar">
<a href="" onClick="closebar(); return false"><img src="close.gif" border="0" /></a>
Your content here.
</div>