function showDiv(sid)//51ad.com子菜单
{
whichEl = eval("smallmenu" + sid);
for (i=1;i<11;i++){
	if (i!=sid){
	eval("smallmenu" + i + ".style.display=\"none\";");
	}else
	{
	eval("smallmenu" + i + ".style.display=\"\";");
	}
}
}
function closeDiv(sid)//51ad.com子菜单
{
whichEl = eval("smallmenu" + sid);
for (i=1;i<11;i++){
	if (i!=sid){
	eval("smallmenu" + i + ".style.display=\"none\";");
	}else
	{
	eval("smallmenu" + i + ".style.display=\"none\";");
	}
}
}