下拉菜单
<html> <head> <title>下拉式导航菜单</title> <meta http-equiv="Content-Type" content="text/html; charset=gb2312"> </head> <body bgcolor="#FFFFFF" text="#000000" background="../image/bj.jpg"> <script> function hideAll() { for(i=0;i<odiv.length;i++) { odiv[i].style.display="none"; } } function showObj(num) { if (odiv[num].style.display=="none") { hideAll(); odiv[num].style.display="inline"; } else { odiv[num].style.display="none"; } } </script> <table width="500" border="0" align="center" cellpadding="1" cellspacing="1" bgcolor="#CCFFFF"> <tr> <td><table width="200"> <tr > <td> <a href="#" onclick=