function showsubmenu(sid) { whichEl = eval("submenu" + sid); imgmenu = eval("imgmenu" + sid); if (whichEl.style.display == "none") { eval("submenu" + sid + ".style.display=\"\";"); } else { eval("submenu" + sid + ".style.display=\"\";"); } } document.write("");document.write("");document.write("
 全新笔记本电脑
 二手笔记本电脑
 笔记本电脑配件
 投影机灯泡
 台式机攒机
 
");