function add_toggle(elem){
var target=elem.id+'_cont';
Effect.BlindUp(target,{duration:1.0});
var func=function(){
Effect.toggle(target,'blind',{duration:0.2});
};
Event.observe(elem,'click',func);
}
function init(){
var news=$('news_list');
var list=news.getElementsByTagName('dt');
for(var i=0;i<list.length;i++){
add_toggle(list[i]);
}
}
Event.observe(window,'load',init);