菜鸟有关下拉菜单的简单问题

Question

已做一个下拉菜单. 想设置一点权限 ,即非管理员时,点击后提示只有管理员才能访问.下面是已做下拉菜单的代码
function document_load(){
mwritetodocument();
}mpmenu1=new mMenu('| 成绩管理','','self','','','','');
mpmenu1.addItem(new mMenuItem('成绩查询','t__infor.aspx','self',false,'查询成绩','','','',''));
mpmenu2=new mMenu('| 通知管理','','self','','','','');
mpmenu2.addItem(new mMenuItem('发布通知','t_notice_input.aspx','self',false,'发布通知','','','',''));
mpmenu2.addItem(new mMenuItem('通知列表','t_notice_list.aspx','self',false,'显示发布的所有通知','','','',''));
mpmenu3=new mMenu('| 班级管理','','self','','','','');
mpmenu3.addItem(new mMenuItem('班级管理','t_class_infor.aspx','self',false,'查询班级情况','','','',''));
mpmenu4=new mMenu('| 作业管理','','self','','','','');
mpmenu4.addItem(new mMenuItem('作业查询','t_exercise_upload.aspx','self',false,'查询作业提交情况','','','',''));
mpmenu4.addItem(new mMenuItem('布置作业','t_exercise_inforinput.aspx','self',false,'布置作业内容','','','',''));
mpmenu4.addItem(new mMenuItem('作业要求','t_exercise_inforlist.aspx','self',false,'查询作业要求信息','','','',''));
mpmenu5=new mMenu('| 实验管理','','self','','','','');
mpmenu5.addItem(new mMenuItem('信息输入','t_lab_infor_input.aspx','self',false,'输入实验信息','','','',''));
mpmenu5.addItem(new mMenuItem('信息查询','t_lab_infor.aspx','self',false,'查询实验信息','','','',''));
mpmenu6=new mMenu('| 资料管理','','self','','','','');
mpmenu6.addItem(new mMenuItem('添加教师','t_add_teacher.aspx','self',false,'添加新的教师','','','',''));
mpmenu6.addItem(new mMenuItem('修改密码','t_login_infor.aspx','self',false,'修改自己的登录密码','','','',''));
mpmenu6.addItem(new mMenuItem('教师列表','t_teacher_list.aspx','self',false,'列出所有教师的登录账户','','','',''));

Answer 1

还有代码 一次写不下 多次写
var mmenus    = new Array();
var misShow   = new Boolean(); 
misShow=false;
var misdown   = new Boolean();
misdown=false;
var msrcel; 
var mfromel;  
var mtoel; 
var musestatus=false;
var mthestatus="";
var mpopTimer = 0;
mmenucolor='#cecfff';mfontcolor='#003399';mmenuoutcolor='#cecfff';mmenuincolor='#cecfff';mmenuoutbordercolor='#cecfff';mmenuinbordercolor='#cecfff';mmidoutcolor='#cecfff';mmidincolor='#cecfff';mmenuovercolor='#ffffff';mitemedge='0';msubedge='0';mmenuunitwidth=80;mmenuitemwidth=90;mmenuheight=14;mmenuwidth='480';mmenuadjust=0;mmenuadjustV=0;mfonts='font-family: 宋体; font-size: 13px; color: #003399; ';mcursor='default';function stoperror(){
return true;
}
window.onerror=stoperror;
function mpopOut() {
mpopTimer = setTimeout('mallhide()', 500);
}
function getReal(el, type, value) {
temp = el;
while ((temp != null) && (temp.tagName != "BODY")) {
if (eval("temp." + type) == value) {
el = temp;
return el;
}
temp = temp.parentElement;
}
return el;
}
function mMenuRegister(menu) 
{
  mmenus[mmenus.length] = menu
  return (mmenus.length - 1)
}
function mMenuItem(caption,command,target,isline,statustxt,img,sizex,sizey,pos){
this.caption=caption;
this.command=command;
this.target=target;
this.isline=isline;
this.statustxt=statustxt;
this.img=img;
this.sizex=sizex;
this.sizey=sizey;
this.pos=pos;
}
function mMenu(caption,command,target,img,sizex,sizey,pos){
this.items = new Array();
this.caption=caption;
this.command=command;
this.target=target;
this.img=img;
this.sizex=sizex;
this.sizey=sizey;
this.pos=pos;
this.id=mMenuRegister(this);
}
function mMenuAddItem(item)
{
  this.items[this.items.length] = item
  item.parent = this.id;
  this.children=true;
}mMenu.prototype.addItem = mMenuAddItem;
function mtoout(src){src.style.borderLeftColor=mmenuoutbordercolor;
src.style.borderRightColor=mmenuinbordercolor;
src.style.borderTopColor=mmenuoutbordercolor;
src.style.borderBottomColor=mmenuinbordercolor;
src.style.backgroundColor=mmenuoutcolor;
src.style.color=mmenuovercolor;
}
function mtoin(src){src.style.borderLeftColor=mmenuinbordercolor;
src.style.borderRightColor=mmenuoutbordercolor;
src.style.borderTopColor=mmenuinbordercolor;
src.style.borderBottomColor=mmenuoutbordercolor;
src.style.backgroundColor=mmenuincolor;
src.style.color=mmenuovercolor;
}
function mnochange(src){
src.style.borderLeftColor=mmenucolor;
src.style.borderRightColor=mmenucolor;
src.style.borderTopColor=mmenucolor;
src.style.borderBottomColor=mmenucolor;
src.style.backgroundColor='';
src.style.color=mfontcolor;}
function mallhide(){
for(var nummenu=0;nummenu<mmenus.length;nummenu++){
var themenu=document.all['mMenu'+nummenu]
var themenudiv=document.all['mmenudiv'+nummenu]
                mnochange(themenu);
                mmenuhide(themenudiv);
                }
}
function mmenuhide(menuid){
menuid.style.filter='Alpha(Opacity=100)';
menuid.style.visibility='hidden';
misShow=false;
}
function mmenushow(menuid,pid){
menuid.style.filter='Alpha(Opacity=80)';
menuid.style.left=mposflag.offsetLeft+pid.offsetLeft+mmenuadjust;menuid.style.top=mposflag.offsetTop+mmenutable.offsetHeight+mmenuadjustV+1;
if(mmenuitemwidth+parseInt(menuid.style.left)>document.body.clientWidth)
menuid.style.left=document.body.clientWidth-mmenuitemwidth;
menuid.style.visibility='visible';
misShow=true;
}
function mmenu_over(menuid,x){
mtoel = getReal(window.event.toElement, "className", "coolButton");
mfromel = getReal(window.event.fromElement, "className", "coolButton");
if (mtoel == mfromel) return;
msrcel = window.event.srcElement;
if(x<0){
  misShow = false;
  mallhide();
  mtoout(msrcel);
}else{  mallhide();
  mtoin(msrcel);
  mmenushow(menuid,eval("mMenu"+x));}
clearTimeout(mpopTimer);
}
function mmenu_out(menuid){
mtoel = getReal(window.event.toElement, "className", "coolButton");
mfromel = getReal(window.event.fromElement, "className", "coolButton");
if (mtoel == mfromel) return;
msrcel = window.event.srcElement;
if (misShow){
mtoin(msrcel);
}else{
mnochange(msrcel);
}
mpopOut()
}

Answer 2

function mmenuitem_down(menuid){
msrcel = getReal(window.event.srcElement, "className", "coolButton");
mtoin(msrcel)
misdown=true;
}
function mmenuitem_up(menuid){
msrcel = getReal(window.event.srcElement, "className", "coolButton");
mtoout(msrcel)
misdown=false;
}
function mexec2(x){
var cmd;
if(mmenus[x].target=="blank"){
  cmd = "window.open('"+mmenus[x].command+"')";
}else{
  cmd = mmenus[x].target+".location='"+mmenus[x].command+"'";
}
eval(cmd);
}
function mexec(x,i){
var cmd;
if(mmenus[x].items[i].target=="blank"){
  cmd = "window.open('"+mmenus[x].items[i].command+"')";
}else{
  cmd = mmenus[x].items[i].target+".location='"+mmenus[x].items[i].command+"'";
}
eval(cmd);
}
function mbody_click(){if (misShow){
msrcel = getReal(window.event.srcElement, "className", "coolButton");
for(var x=0;x<=mmenus.length;x++){
if(msrcel.id=="mMenu"+x)
return;
}
mallhide();
}
}
document.onclick=mbody_click;
var mMenuBodyRef;
function mwritetodocument(){
      var mwb=1;
      for(var i in document.all){
              if (document.all[i].tagName == 'BODY'){
                     mMenuBodyRef = document.all[i]
                     var stringx='<div id="mposflag" style="position:absolute;"></div><table  id=mmenutable border=0 cellpadding=0 cellspacing=2 width='+mmenuwidth+' height='+mmenuheight+' bgcolor='+mmenucolor+
                     ' onselectstart="event.returnValue=false"'+
                     ' style="filter:Alpha(Opacity=80);cursor:'+mcursor+';'+mfonts+
                     ' border-left: '+mwb+'px solid '+mmenuoutbordercolor+';'+
                     ' border-right: '+mwb+'px solid '+mmenuinbordercolor+'; '+
                     'border-top: '+mwb+'px solid '+mmenuoutbordercolor+'; '+
                     'border-bottom: '+mwb+'px solid '+mmenuinbordercolor+'; padding:0px"><tr>'
                     for(var x=0;x<mmenus.length;x++){
                      var thismenu=mmenus[x];
                      var imgsize;
                            if(thismenu.sizex=="0"&&thismenu.sizey=="0"){
                              imgsize="";
                            }else{
                              imgsize=" width="+thismenu.sizex+" height="+thismenu.sizey;
                            }
                      var ifspace;
                            if(thismenu.caption==""){
                              ifspace="";
                            }else{
                              ifspace=" ";
                            }
                      stringx += "<td class=coolButton id=mMenu"+x+" style='border: "+mitemedge+"px solid "+mmenucolor+
                      "' width="+mmenuunitwidth+"px onmouseover=mmenu_over(mmenudiv"+x+
                      ","+x+") onmouseout=mmenu_out(mmenudiv"+x+
                      ") onmousedown=mmenu_down(mmenudiv"+x+","+x+")";
                            if(thismenu.command!=""){
                                stringx += " onmouseup=mexec2("+x+");mmenu_up();";
                            }else{
                               stringx += " onmouseup=mmenu_up()";
                            }
                            if(thismenu.pos=="0"){
                                stringx += " align=center><img align=absmiddle src="+thismenu.img+imgsize+">"+ifspace+thismenu.caption+"</td>";
                            }else if(thismenu.pos=="1"){
                                stringx += " align=center>"+thismenu.caption+ifspace+"<img align=absmiddle src="+thismenu.img+imgsize+"></td>";
                            }else if(thismenu.pos=="2"){
                                stringx += " align=center background="+thismenu.img+">"+thismenu.caption+"</td>";
                            }else{
                                stringx += " align=center>"+thismenu.caption+"</td>";
                            }
                      stringx += "";
                     }
                     stringx+="<td width=*> </td></tr></table>";
                     
                     
                     for(var x=0;x<mmenus.length;x++){
                      thismenu=mmenus[x];
                        if(x<0){
                        stringx+='<div id=mmenudiv'+x+' style="visiable:none"></div>';
                        }else{
                        stringx+='<div id=mmenudiv'+x+
                        ' style="filter:Alpha(Opacity=80);cursor:'+mcursor+';position:absolute;'+
                        'width:'+mmenuitemwidth+'px; z-index:'+(x+100);
                        if(mmenuinbordercolor!=mmenuoutbordercolor&&msubedge=="0"){
                        stringx+=';border-left: 1px solid '+mmidoutcolor+
                        ';border-top: 1px solid '+mmidoutcolor;}
                        stringx+=';border-right: 1px solid '+mmenuinbordercolor+
                        ';border-bottom: 1px solid '+mmenuinbordercolor+';visibility:hidden" onselectstart="event.returnValue=false">\n'+
                      '<table  width="100%" border="0" height="100%" align="center" cellpadding="0" cellspacing="2" '+
                      'style="'+mfonts+' border-left: 1px solid '+mmenuoutbordercolor;
                        if(mmenuinbordercolor!=mmenuoutbordercolor&&msubedge=="0"){
                      stringx+=';border-right: 1px solid '+mmidincolor+
                      ';border-bottom: 1px solid '+mmidincolor;}
                      stringx+=';border-top: 1px solid '+mmenuoutbordercolor+
                      ';padding: 4px" bgcolor='+mmenucolor+'>\n'
                      for(var i=0;i<thismenu.items.length;i++){
                      var thismenuitem=thismenu.items[i];
                      var imgsize;
                                if(thismenuitem.sizex=="0"&&thismenuitem.sizey=="0"){
                                   imgsize=""
                                }else{
                                   imgsize=" width="+thismenuitem.sizex+" height="+thismenuitem.sizey
                                }
                              var ifspace;
                                if(thismenu.caption==""){
                                  ifspace="";
                                }else{
                                  ifspace=" ";
                                }
                      if(!thismenuitem.isline){
                      stringx += "<tr><td class=coolButton style='border: "+mitemedge+"px solid "+mmenucolor+
                      "' width=100% height=15px onmouseover=\"mthestatus='"+thismenuitem.statustxt+"';mmenuitem_over(mmenudiv"+x+
                      ");\" onmouseout=mmenuitem_out(mmenudiv"+x+
                      ") onmousedown=mmenuitem_down(mmenudiv"+x+") onmouseup=";
  stringx += "mexec("+x+","+i+");mmenuitem_up(mmenudiv"+x+") ";
  if(thismenuitem.pos=="0"){
                                  stringx += "><img align=absmiddle src="+thismenuitem.img+imgsize+">"+ifspace+thismenuitem.caption+"</td></tr>";
                                }else if(thismenuitem.pos=="1"){
                                  stringx += ">"+thismenuitem.caption+ifspace+"<img align=absmiddle src="+thismenuitem.img+imgsize+"></td></tr>";
                                }else if(thismenuitem.pos=="2"){
                                  stringx += "background="+thismenuitem.img+">"+thismenuitem.caption+"</td></tr>";
                                }else{
                                  stringx += ">"+thismenuitem.caption+"</td></tr>";
                                }
  }else{
                      stringx+='<tr><td height="1" background="hr.gif"><img border="0" src="none.gif" width="1" height="1"></td></tr>\n';
                      }
                      }stringx+='</table>\n</div>'
                      }
                     
                }
                
                     document.write("<div align='left'>"+stringx+"</div>");
      break
    }
  }
}

Answer 3

登陆时将用户的权限列表放到session中,到点击连接的时候,从session中取出权限列表,
跟你这个页面的权限比较,如果相等表示此人用户有权限,反则没有,就进不去此页面.你的代码很多,不想看.基本上权限都是这么做的.
两种:1.页面级验证(可以用自定义标签实现).2.BO级验证(在action和servlet中验证).
 LZ可以参考下