modificar javascriot (layer)

Alba21
08 de Marzo del 2006
hola me gustaria modificar este layer, es decir que este layer aparezca despues de unos 2 minutos y que solo aparezca solo una vez x dia, es posible, por favor ayudenme, gracias


<script type='text/javascript'>
<!--
function updatecook(itemmenu){
cookitem='span_'+itemmenu;
if(document.getElementById(cookitem).style.display!='none'){
var expireDate = new Date;
expireDate.setMinutes(expireDate.getMinutes()+10);
document.cookie = "treemenustatus=" + itemmenu + "; expires=" + expireDate.toGMTString();
}
else{
clearcook();
}
}


function clearcook(){
var expireDate = new Date;
expireDate.setMinutes(expireDate.getMinutes()+10);
document.cookie = "treemenustatus=" + "0" + "; expires=" + expireDate.toGMTString();
}

//-->

</script>

<div id="Layer1" style="position:absolute; left:2px; top:4px; width:54px; height:29px; z-index:1">
<div id="dropin" style="position:absolute; top:344px; width:321px; height:308px; background-color:#ffffff; left: 100px; visibility: hidden; z-index:100">
<table style="border:1px solid #336699" width="320" cellpadding="0" cellspacing="0" bordercolor="#336699">
<tr>
<td bgcolor="#336699"><div align="center">
<font color="#FFFFFF" size="2" face="Verdana, Arial, Helvetica, sans-serif"><strong>
PUBLICIDAD</strong></font></div></td>
</tr>
<tr>
<td height="289" colspan="2">
<iframe name="I1" width="336" height="266" scrolling="no" border="0" frameborder="0" src="http://miweb.com/banner,html">
</iframe></td>
</tr>
</table>
</div>
<script language="JavaScript1.2">

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

var bouncelimit=8 //(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-250+calunits
crossobj.visibility=(dom||ie)? "visible" : "show"
dropstart=setInterval("dropin()",50)
}

function dropin(){
scroll_top=(ie)? truebody().scrollTop : window.pageYOffset
if (parseInt(crossobj.top)<350+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!="BackCompat")? document.documentElement : document.body
}


window.onload=initbox

</script>

<script language="JavaScript" type="text/JavaScript">
<!--
function MM_reloadPage(init) { //reloads the window if Nav4 resized
if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}
MM_reloadPage(true);
//-->
</script>