function ssmall(nowid,total){
//	alert(nowid);
	for(var i=1;i<=total;i++){
		if(i==nowid){
				document.getElementById("cbig"+i).className="class_big_topic_f";
				document.getElementById("csmall"+i).className="class_small";
			}
			else{
				document.getElementById("cbig"+i).className="class_big_topic";
				document.getElementById("csmall"+i).className="class_small_h";
		}
	}
}