function show_div(div_name,num_total,num) { var i; for(i=1; i<=num_total; i++) { document.getElementById("title_"+div_name+"_"+i).className="soft_changyong_top_n"; document.getElementById("div_"+div_name+"_"+i).style.display = "none"; } document.getElementById("title_"+div_name+"_"+num).className="soft_changyong_top_y"; document.getElementById("div_"+div_name+"_"+num).style.display = ""; }