<script language="JavaScript">
function chVis(){
el=document.getElementById("pun-announcement").getElementsByTagName("div")[1]
if(el.style.display!="none"){
el.style.display="none"
document.getElementById("annBut").value="Показать"
}
else {
el.style.display="inline"
document.getElementById("annBut").value="Скрыть"
}
}document.getElementById("pun-announcement").getElementsByTagName("h2")[0].style.border='none'
document.getElementById("pun-announcement").getElementsByTagName("h2")[0].style.width='100%'elm=document.getElementById("pun-announcement").getElementsByTagName("span")[0]
elm.innerHTML="<table border=0 width='100%' cellspacing=0 celpadding=0><tr><td><b>"+elm.innerHTML+"</b></td><td align=center width=100px'><input id=annBut type='Button' value='Скрыть' onclick='chVis()'></td></tr></table>"
</script>
Отображает кнопочку скрыть/показать в строке со словом Объявление