var delay=3000

var ie4=document.all

var curindex_news=0
var totalnews=0

function get_total_news(){
if (ie4){
while (eval("document.all.newscontent"+totalnews))
totalnews++
}
else{
while (document.getElementById("newscontent"+totalnews))
totalnews++
}
}

function contract_all_news(){
for (y=0;y<totalnews;y++){
if (ie4)
eval("document.all.newscontent"+y).style.display="none"
else
document.getElementById("newscontent"+y).style.display="none"
}
}

function expand_one_news(which){
contract_all_news()
if (ie4)
eval("document.all.newscontent"+which).style.display=""
else
document.getElementById("newscontent"+which).style.display=""
}

function rotate_content_news(){
get_total_news()
contract_all_news()
expand_one_news(curindex_news)
curindex_news=(curindex_news<totalnews-1)? curindex_news+1: 0
setTimeout("rotate_content_news()",delay)
}