如何做一个类似windows的开始菜单的 下拉菜单。在线等

Question

如果不用SELECT的话，用层的隐藏/显示就可以做出来了

Answer 1

to WarrenBuffer:
              你说的，我明白，但是我做的是多级菜单，不知如何做，请指教。

Answer 2

var mmenus    = new Array();
var misShow   = new Boolean(); 
misShow=false;
var misdown   = new Boolean();
misdown=false;
var musestatus=false;
var mpopTimer = 0;
mmenucolor='#D6D3CE';mfontcolor='#000000';mmenuoutcolor='#D6D3CE';mmenuincolor='#E7E3DE';mmenuoutbordercolor='#FFFFFF';mmenuinbordercolor='#000000';mmidoutcolor='#E3E1DE';mmidincolor='#8E8C89';mmenuovercolor='#000000';mitemedge='1';msubedge='1';mmenuunitwidth=60;mmenuitemwidth=160;mmenuheight=30;mmenuwidth='100%';mmenuadjust=0;mmenuadjustV=0;mfonts='font-family: 宋体; font-size: 9pt; color: #000000; ';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.visibility='hidden';
misShow=false;
}
function mmenushow(menuid,pid){menuid.style.left=mposflag.offsetLeft+pid.offsetLeft+mmenuadjust;menuid.style.top=mmenutable.offsetTop+mmenutable.offsetHeight+mmenuadjustV;
if(mmenuitemwidth+parseInt(menuid.style.left)>document.body.clientWidth+document.body.scrollLeft)
menuid.style.left=document.body.clientWidth+document.body.scrollLeft-mmenuitemwidth;
menuid.style.visibility='visible';
misShow=true;
}
function mmenu_over(menuid,x){
toel = getReal(window.event.toElement, "className", "coolButton");
fromel = getReal(window.event.fromElement, "className", "coolButton");
if (toel == fromel) return;
if(x==3){
  misShow = false;
  mallhide();
  mtoout(eval("mMenu"+x));
}else{
if(!misShow){mtoout(eval("mMenu"+x));}else{
  mallhide();
  mtoin(eval("mMenu"+x));
  mmenushow(menuid,eval("mMenu"+x));
}
}}
function mmenu_out(x){
toel = getReal(window.event.toElement, "className", "coolButton");
fromel = getReal(window.event.fromElement, "className", "coolButton");
if (toel == fromel) return;
if (misShow){
mtoin(eval("mMenu"+x));
}else{
mnochange(eval("mMenu"+x));
}}
function mmenu_down(menuid,x){
  if(misShow){
  mmenuhide(menuid);
  mtoout(eval("mMenu"+x));
  }
  else{
  mtoin(eval("mMenu"+x));
  mmenushow(menuid,eval("mMenu"+x));
  misdown=true;
  }
}
function mmenu_up(){
  misdown=false;
}
function mmenuitem_over(x,i){
srcel = getReal(window.event.srcElement, "className", "coolButton");
if(misdown){
mtoin(srcel);
}
else{
mtoout(srcel);
}
mthestatus = mmenus[x].items[i].statustxt;
if(mthestatus!=""){
musestatus=true;
window.status=mthestatus;
}}

Answer 3

function mmenuitem_out(){
srcel = getReal(window.event.srcElement, "className", "coolButton");
mnochange(srcel);
if(musestatus)window.status="";}
function mmenuitem_down(){
srcel = getReal(window.event.srcElement, "className", "coolButton");
mtoin(srcel)
misdown=true;
}
function mmenuitem_up(){
srcel = getReal(window.event.srcElement, "className", "coolButton");
mtoout(srcel)
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){
srcel = getReal(window.event.srcElement, "className", "coolButton");
for(var x=0;x<=mmenus.length;x++){
if(srcel.id=="mMenu"+x)
return;
}
mallhide();
}
}
document.onclick=mbody_click;
function mwritetodocument(){
      var mwb=0;
                     var stringx='<div id="mposflag" style="position:absolute;"></div><table  id=mmenutable border=0 cellpadding=3 cellspacing=2 width='+mmenuwidth+' height='+mmenuheight+' bgcolor='+mmenucolor+
                     ' onselectstart="event.returnValue=false"'+
                     ' style="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=" width="+thismenu.sizex+" height="+thismenu.sizey;
                      var ifspace="";
                      if(thismenu.caption!="")ifspace="&nbsp;";
                      stringx += "<td nowrap class=coolButton id=mMenu"+x+" style='border: "+mitemedge+"px solid "+mmenucolor+
                      "' width="+mmenuunitwidth+"px onmouseover=mmenu_over(mmenudiv"+x+
                      ","+x+") onmouseout=mmenu_out("+x+
                      ") onmousedown=mmenu_down(mmenudiv"+x+","+x+")";
                            if(thismenu.command!=""){
                                stringx += " onmouseup=mmenu_up();mexec2("+x+");";
                            }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+"'>&nbsp;"+thismenu.caption+"&nbsp;</td>";
                            }else{
                                stringx += " align=center>&nbsp;"+thismenu.caption+"&nbsp;</td>";
                            }
                      stringx += "";
                     }
                     stringx+="<td width=*>&nbsp;</td></tr></table>";
                     
                     
                     for(var x=0;x<mmenus.length;x++){
                      thismenu=mmenus[x];
                        if(x==3){
                        stringx+='<div id=mmenudiv'+x+' style="visiable:none"></div>';
                        }else{
                        stringx+='<div id=mmenudiv'+x+
                        ' style="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=" width="+thismenuitem.sizex+" height="+thismenuitem.sizey;
                              var ifspace="";
                              if(thismenu.caption!="")ifspace="&nbsp;";
                      if(!thismenuitem.isline){
                      stringx += "<tr><td class=coolButton style='border: "+mitemedge+"px solid "+mmenucolor+
                      "' width=100% height=15px onmouseover=\"mmenuitem_over("+x+","+i+
                      ");\" onmouseout=mmenuitem_out() onmousedown=mmenuitem_down() onmouseup=";
  stringx += "mmenuitem_up();mexec("+x+","+i+"); ";
  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" onmousemove="clearTimeout(mpopTimer);"><img height="1" width="1" src="none.gif" border="0"></td></tr>\n';
                      }
                      }stringx+='</table>\n</div>'
                      }
                     
                }
                
                     document.write("<div align='left'>"+stringx+"</div>");
}

Answer 4

to hover_online:
               我现在试试你的代码，如果可以，请接分，谢谢

Answer 5

window.onload=mfixSize;window.onresize=mfixSize;function mfixSize(){mouterDiv.style.top = mmenutable.offsetHeight;mouterDiv.style.height = document.body.clientHeight - mmenutable.offsetHeight;}
mpmenu1=new mMenu('总控制台','','self','','','','');
mpmenu1.addItem(new mMenuItem('添加防火墙','','self',false,'','','','',''));
mpmenu1.addItem(new mMenuItem('切换防火墙','','self',false,'','','','',''));
mpmenu1.addItem(new mMenuItem('打开防火墙','','self',false,'','','','',''));
mpmenu2=new mMenu('查看信息','','self','','','','');
mpmenu2.addItem(new mMenuItem('软件版本','','self',false,'','','','',''));
mpmenu2.addItem(new mMenuItem('配置信息','','self',false,'','','','',''));
mpmenu2.addItem(new mMenuItem('用户信息','','self',false,'','','','',''));
mpmenu2.addItem(new mMenuItem('修改密码','','self',false,'','','','',''));
mpmenu3=new mMenu('编辑窗口','','self','','','','');
mpmenu3.addItem(new mMenuItem('显示工具栏','','self',false,'','','','',''));
mpmenu3.addItem(new mMenuItem('隐藏工具栏','','self',false,'','','','',''));
mpmenu4=new mMenu('帮助','','self','','','','');mwritetodocument();
document.write('<DIV id=mouterDiv>');
没有发完。因为不能连续发送三条消息，还没完呢！
吧这三条内容连接到一起，放到一个js里面，另外包含到一个网页的任何位置

Answer 6

终与法晚了，csdn谁规定的，不能连续法三条！真是若！

Answer 7

To :hover_online
    我另开帖子，帖子名为下拉菜单问题