求树型菜单代码(XP菜单效果)

Question

求树型菜单代码(XP菜单效果) 

Answer 1

/****************************/
放到记事本里　命名为*****.js
/****************************/
var faisunMenu_openedfolderimage_src="images/openedfolder.gif";
var faisunMenu_closedfolderimage_src="images/closedfolder.gif";
var faisunMenu_menufileimage_src="images/menufile.gif";var faisunMenu_treetext=new Array();
var faisunMenu_treeurl=new Array();
var faisunMenu_treeurltarget=new Array();var faisunMenu_treeNum=0;document.write("<style type='text/css'>.blockhide{display:none;} .blockmove{overflow: hidden;height:1px;display:block;} .blockshow{overflow: visible; display:block;} .hideme{overflow: visible;display:none;} .showme{overflow: visible;display:block;} .faisunMenu td{font-size:12px;} </style>");function outinit(itemNo,dir,blockheight){ //缩小一个div的高度
  var subfiles=document.getElementById("item"+itemNo);
  if(blockheight==0){
subfiles.className="blockshow";
subfiles.style.height='';
blockheight=parseInt(subfiles.offsetHeight);
if(dir>0) subfiles.className="blockmove";
  }
  var outinspeed=blockheight/10;
  var nowheight=parseInt(subfiles.offsetHeight)+outinspeed*dir;
  if(nowheight<=0){
    subfiles.className="blockhide";
return;
  }else{
    subfiles.className="blockmove";
  }
  if(nowheight>=blockheight && dir>0){
    subfiles.className="blockshow";
subfiles.style.height='';
return;
  }
  subfiles.style.height=nowheight;
  subfiles.scrollTop=blockheight;
  parentsresize(subfiles);
  setTimeout("outinit("+itemNo+","+dir+","+blockheight+")",15);
}function parentsresize(obj){ //缩小父类div的高度
do{
if(obj.className=="faisunMenu"){
break;
}
if(obj.className=="blockshow"){
obj.style.height="";
}
}while(obj=obj.parentElement);
}function showhideit(itemNo){
  var showfolder=document.images["openedfolderimage"+itemNo];
  var hidefolder=document.images["closedfolderimage"+itemNo];
  var subfiles=document.getElementById("item"+itemNo);
  if(subfiles.className=="blockmove") {return;}  if(showfolder.className=="hideme") {
hidefolder.className="hideme";
    showfolder.className="showme";
outinit(itemNo,1,0);
  }
  else {
showfolder.className="hideme";
    hidefolder.className="showme";
outinit(itemNo,-1,0);
  }
}function addtree(text,url,target){
  faisunMenu_treetext.push(text);
  faisunMenu_treeurl.push(url?url:"");
  faisunMenu_treeurltarget.push(target?target:"main");
}function getsubnum(text){ //算出前面有几个"-"号
  var newtext=text.replace(/^-*/,"");
  return text.length-newtext.length;
}
function createtree(){  faisunMenu_treeNum++;
  var treestatus=new Array();
  var treeendlayer=new Array();
  var openedlayer=new Array();  var next_subnum=0;
  for(i=faisunMenu_treetext.length-1;i>=0;i--){ //从后面分析起,是否有为结束位置或有子树枝
    var subnum=getsubnum(faisunMenu_treetext[i]);
treestatus[i]=0;
if(subnum<next_subnum){  //有子目录
   treeendlayer[next_subnum]=0;
   treestatus[i]+=1;
}
if(!treeendlayer[subnum]){ //结束位置
   treeendlayer[subnum]=1;
   treestatus[i]+=2;
}
//显然地,既有子目录又是结束位置时 treestatus[i]=3;
next_subnum=subnum;
  }
  
  var echo="<div class='faisunMenu'>";
  for(i=0;i<faisunMenu_treetext.length;i++){
     if(!faisunMenu_treetext[i]) continue;
 var subnum=getsubnum(faisunMenu_treetext[i]);
 var newtext=faisunMenu_treetext[i].replace(/^-*\*?/,"");
 
 if(treestatus[i]==1||treestatus[i]==3){
   var havechild=1;
 }else{
   var havechild=0;
 }  if(treestatus[i]==2||treestatus[i]==3){
   openedlayer[subnum]=0;
   var barstatus=2;
 }else{
   openedlayer[subnum]=1;
   var barstatus=1;  
 }  var showme=faisunMenu_treetext[i].match(/^-*\*/);
 var openfold=(i==faisunMenu_treetext.length-1?0:faisunMenu_treetext[i+1].match(/^-*\*/));
 var li=i-1;
     if(i>0&&(treestatus[li]==1||treestatus[li]==3)){
   echo += "<div id='item"+faisunMenu_treeNum+li+"' class='"+(showme?"blockshow":"blockhide")+"'>";
 }
 echo += "<table border='0' cellspacing='0' cellpadding='0' "+(subnum==0?"height=25":"")+"><tr>\n";
for(j=1;j<subnum;j++){
  echo += "<td width='20' valign=bottom><img src='images/"+(openedlayer[j]?"bar3.gif":"spacer.gif")+"' width='20' height='20'></td>\n";
}
if(subnum>0){
  echo += "<td width='20' valign=bottom><img src='images/bar"+barstatus+".gif' width='20' height='20'></td>";
}
var clicktoshowhide=(havechild?" onclick='showhideit("+faisunMenu_treeNum+""+i+")' style='cursor:pointer;' ":"");
    echo += "<td width='22' valign=bottom "+clicktoshowhide+"><img name='openedfolderimage"+faisunMenu_treeNum+""+i+"' src='"+(havechild?faisunMenu_openedfolderimage_src:faisunMenu_menufileimage_src)+"' class='"+(openfold?"showme":"hideme")+"' width='20' height='20'><img name='closedfolderimage"+faisunMenu_treeNum+""+i+"' src='"+(havechild?faisunMenu_closedfolderimage_src:faisunMenu_menufileimage_src)+"' class='"+(openfold?"hideme":"showme")+"' width='20' height='20'></td>";
echo += "<td nowrap valign=bottom><a onmousedown='return false;' "+clicktoshowhide+" "+(faisunMenu_treeurl[i]?"href='"+faisunMenu_treeurl[i]+"'":"name='#'")+" target='"+faisunMenu_treeurltarget[i]+"'>"+newtext+"</a></td></tr></table>\n\n";      if(barstatus==2&&!havechild){
   for(j=subnum;j>=0;j--){
     if(!openedlayer[j]) echo += "</div>";else break;
   }
 }
  }
  echo += "</div>";
  document.write(echo);  //清空列表以接受下一个菜单
  faisunMenu_treetext=new Array();
  faisunMenu_treeurl=new Array();
  faisunMenu_treeurltarget=new Array();}

Answer 2

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Answer 3

灌水机代码：www.dullwolf.cn/CSDNer.rar下载。