<style> TD{font-size: 9pt; color: #66DDDD} .out{font-size: 9pt; color: #66DDDD;border-width:1px;border-style:solid;border-color:0090c0 0070b0 0070b0 0090c0;cursor:hand; background:0080c0; text-align: center} .out2 {text-align: center} .in,.out2{font-size: 9pt; color: #66DDDD;border-width:1px;border-style:solid;border-color:0070b0 0090c0 0090c0 0070b0;background:0078b8;cursor:default} </style> <script> var temp_num = null; var now_num = null; var the_top = 127; //表单的最高,最低 var the_bottom = 146 var no_can_do = false; function Show_menu(u_num,d_num) { event.srcElement.className = "out2"; if(no_can_do) { return; } now_num = d_num; if(temp_num) { if(document.getElementById("menu_"+temp_num).doing) { clearInterval(document.getElementById("menu_"+temp_num).doing); } } else { temp_num = u_num; } document.getElementById("menu_"+temp_num).doing = setInterval("set_menu()",10); } function set_menu() { no_can_do = true; document.getElementById("form_"+temp_num).style.display = "none"; var if_move = document.getElementById("div_"+temp_num).style.pixelHeight - 6; if(if_move>1) { document.getElementById("div_"+temp_num).style.pixelHeight = if_move; } else { document.getElementById("div_"+temp_num).style.pixelHeight = 1; var if_stop = document.getElementById("menu_"+temp_num).style.pixelTop - 1; if(if_stop>the_top) { document.getElementById("menu_"+temp_num).style.pixelTop = if_stop; document.getElementById("menu_"+now_num).style.pixelTop += 1; } else { document.getElementById("menu_"+temp_num).style.pixelTop = the_top; document.getElementById("menu_"+now_num).style.pixelTop = the_bottom; var if_end = document.getElementById("div_"+now_num).style.pixelHeight + 6; if(if_end < 182) { document.getElementById("div_"+now_num).style.pixelHeight = if_end } else { document.getElementById("div_"+now_num).style.pixelHeight = 182; clearInterval(document.getElementById("menu_"+temp_num).doing); document.getElementById("menu_"+temp_num).doing = false; document.getElementById("form_"+now_num).style.display = "block"; temp_num = null; no_can_do = false; } } } } function returnIT() { event.srcElement.className = "out"; } </script> <div id="menu_0" style="position: absolute; top: 127; left: 176; width: 339; height: 201"> <table border="0" width="100%" style="background-color: #0080C0" cellspacing="0" cellpadding="0" height="19"> <tr> <td width="277" class="out" height="19" style="cursor: default"> </td> <td width="58" class="out" height="19" onmousedown="Show_menu(1,0)" onmouseup="returnIT()">老师登录</td> </tr> </table> <div id="div_0" style="position: relative; width: 339; height: 1; overflow: hidden"> <table border="0" width="100%" style="background-color: #0080C0" cellspacing="0" cellpadding="0" height="182"> <tr> <td width="100%" height="182"> <form id="form_0" style="position: relative; left:70; top:10;font-family: Arial; display: none" action="javascript:;" method="post" align="center"> 当前用户类型:老师 <br> <br> 用户: <input class="in" style="WIDTH: 100px" size="20"> mail.cn<br> 口令: <input class="in" type="password" size="20"><br> <br> <input class="out" onfocus="this.close()" type="button" value="登录服务器"> </form> </td> </tr> </table> </div> </div> <div id="menu_1" style="position: absolute; top: 146; left: 176; width: 339; height: 219"> <table border="0" width="100%" style="background-color: #0080C0" cellspacing="0" cellpadding="0" height="19"> <tr> <td width="277" class="out" height="19" style="cursor: default"> </td> <td width="58" class="out" height="19" onmousedown="Show_menu(0,1)" onmouseup="returnIT()">学生登录</td> </tr> </table> <div id="div_1" style="position: relative; width: 339; height: 182; overflow: hidden"> <table border="0" width="100%" style="background-color: #0080C0" cellspacing="0" cellpadding="0" height="100%"> <tr> <td width="100%" height="182"> <form id="form_1" style="position: relative; left:70; top:10;font-family: Arial; display: block" action="javascript:;" method="post" align="center"> 当前用户类型:学生 <br> <br> 用户: <input class="in" style="WIDTH: 100px" size="20"> mail.cn<br> 口令: <input class="in" type="password" size="20"><br> <br> <input class="out" onfocus="this.close()" type="button" value="登录服务器"> </form> </td> </tr> </table> </div> </div> [Ctrl+A 全部选择 提示:你可先修改部分代码,再按运行]