鏈接就像開始菜單一樣可分幾層_文本鏈接特效

鏈接就像開始菜單一樣可分幾層,您可以先修改部分代碼再運行.

<SCRIPT>
function _init(){
    for(var i=0;i<document.all.length;i++){
        if(document.all[i].getAttribute("menu")){
            var attribs = _eat_attrib(document.all[i].getAttribute("menu"));
            var tree = new Array();
            var src = document.all.item(attribs["src"]).innerText;    // get the config info from the mrcs of the designated source element
            src = _strip(src);    // remove whitespace informatin
            tree = _compile(tree,src);    // turn it into a multilevel array

// at this time, associate the element the
            // menu is attached to with the created menuing elements
            var menuId = _menus.length;    
            document.all[i].menuId = menuId;
            document.all[i].onmouseover = _rootmouseover;
            document.all[i].onmouseout = _rootmouseout;

// get and preset designer preferences
            var attribs = _eat_attrib(document.all[i].getAttribute("menu"));
            attribs["border-width"] = (attribs["border-width"]!=null?attribs["border-width"]:1);
            attribs["border-color"] = (attribs["border-color"]!=null?attribs["border-color"]:"black");
            attribs["background"] = (attribs["background"]!=null?attribs["background"]:"white");
            attribs["highlight"] = (attribs["highlight"]!=null?attribs["highlight"]:"#DCDCDC");
            attribs["font-size"] = (attribs["font-size"]!=null?attribs["font-size"]:"normal");
            attribs["font-family"] = (attribs["font-family"]!=null?attribs["font-family"]:"");
            attribs["font-color"] = (attribs["font-color"]!=null?attribs["font-color"]:"");
            attribs["icon-color"] = (attribs["icon-color"]!=null?attribs["icon-color"]:"black");
            attribs["arrow"] = (attribs["arrow"]!=null?attribs["arrow"]:true);
            attribs["showrow"] = (attribs["showrow"]!=null?attribs["showrow"]:true);
            attribs["height"] = (attribs["height"]!=null?attribs["height"]:22);
            attribs["width"] = (attribs["width"]!=null?attribs["width"]:150);
            attribs["arrow-offset"] = (attribs["arrow-offset"]!=null?Number(attribs["arrow-offset"]):135);
            attribs["menu-offset"] = (attribs["menu-offset"]!=null?Number(attribs["menu-offset"]):1);
            attribs["menu-topoffset"] = (attribs["menu-topoffset"]!=null?Number(attribs["menu-topoffset"]):0);
            attribs["wait"] = (attribs["wait"]!=null?Number(attribs["wait"]):500);
            document.all[i].attribs = attribs;

// now, create all of the needed elements for this menu
            _create(document.all[i],tree);
        }
    }
}
window.onload = _init;
/////////////////////////

/////////////////////////
//// takes a position and a string,
//// returns the position of the next unpaired "]" character
function _pair(after,str){
    while(1){
        var nextA = str.indexOf("[",after + 1);
        var nextB = str.indexOf("]",after + 1);
        if(nextA == -1){
            return nextB;
        }
        if(nextA > nextB){
            return nextB;
        }
        after = _pair(nextA,str);
    }
}

/////////////////////////
//// transforms raw text input into a multilevel array
//// returns an array based on the string input
function _compile(ary,str){
    while(1){ // keep circling and eating the str

// when the str is empty, return the built array
        if(str.length == 0){
            return ary;
        }

// is there any more sub-arrays?
        var nextA = str.indexOf("[");
        if(nextA == -1){
            var go = str;
            var spawn = "";
            str = "";
        }else{
            var go = str.substring(0,nextA);
            var spawn = str.substring(str.indexOf("[") + 1,_pair(str.indexOf("["),str))
            str = str.substring(_pair(str.indexOf("["),str) + 1,str.length);
        }

// build a flat array of key/value pairs and strip out the empty elements
        var A = go.split(";");
        var A2 = new Array();
        for(var j=0;j<A.length;j++){
            if(A[j].indexOf("!") != -1){
                A2[A2.length] = A[j];
            }
        }
        A = A2;

// parse the flat array
        for(var i = 0;i < A.length;i++){
            var tmpA = A[i].split("!");
            var thisary = ary.length;
            ary[thisary] = new Array();

// attach a sub array if needed
            if((i+1)==A.length && spawn.length != ""){
                ary[thisary] = _compile(ary[thisary],spawn);
            }
            // assign properties to this array based on the parsed array key/value pairs
            ary[thisary].name = tmpA[0];
            ary[thisary].url = tmpA[1];
            ary[thisary].desc = tmpA[2];
            ary[thisary].icon = tmpA[3];
        }
    }
}
///////////////////////

///////////////////////
//// Actually draw and initialize elements from the array
function _create(e,ary){
    var str = new String();
    var menuId = _menus.length;    // save the ID for this menu
    str     = '<div   class="7ndlhld"   id="_div_'
        + menuId        // give it a unique name
        + '" STYLE="visibility:hidden;position:absolute;top:0;left:0;width:'
        + e.attribs["width"]
        + ';height:10;background-color:black;">';
    e.insertAdjacentHTML("AfterEnd",str);    // paste it in below the root element
    var thismenu = document.all.item("_div_" + menuId);    // save a reference to the element object
    _menus[menuId] = thismenu;    // save a reference to the element object in a global array for later use
    thismenu.menuId = menuId;    // tell the element object where it is in the global array
    thismenu.close = _close;    // assign a close function to it
    thismenu.menuParent = null;    // initialize some variables to null
    thismenu.menuChild = null;
    thismenu.highlightBG = e.attribs["highlight"];
    thismenu.normalBG = e.attribs["background"];
    thismenu.menuOffset = e.attribs["menu-offset"];
    thismenu.menuTopoffset = e.attribs["menu-topoffset"];
    thismenu.waitDelay = e.attribs["wait"];
    var prevBottom = 0;        // initialize where the option elements should start drawing

// create a span element for every option
    for(var i=0;i<ary.length;i++){
        str     = '<SPAN ID="_link_'    // assign a unique name
            + menuId
            + '_'
            + i
            + '" STYLE="position:absolute;top:'
            + prevBottom        // position it correctly
            + ';left:0;height:'
            + e.attribs["height"]
            + ';overflow:hidden;width:'
            + e.attribs["width"]
            + ';background:'
            + e.attribs["background"]
            + ';border-width:'
            + e.attribs["border-width"]
            + ';border-style:solid;border-color:'
            + e.attribs["border-color"]
            + ';';
        if(e.attribs["showrow"]!=true && i != 0){
            str    +='border-top-width:0;';
        }
        str    +='text-align:left;font-size:'
            + e.attribs["font-size"]
            + ';padding-left:4;">';
        if(ary[i].icon!=null){
            str    +='<SPAN STYLE="font-family:webdings;color:'
                + e.attribs["icon-color"]
                + '">&#'
                + ary[i].icon
                + ';</SPAN> ';
        }
        str    +='<A HREF="'
            + ary[i].url
            + '" TITLE="'
            + ary[i].desc
            + '" STYLE="font-family:'
            + e.attribs["font-family"]
            + ';color:'
            + e.attribs["font-color"]
            + ';padding-left:3;">'
            + ary[i].name        // fill in the mrc/name
            + '</A>';
        if(ary[i].length > 0 && e.attribs["arrow"]){
            str    +='<SPAN STYLE="font-family:webdings;position:absolute;top:0;left:'
                + e.attribs["arrow-offset"]
                + ';width:'
                + (e.attribs["width"] - e.attribs["arrow-offset"])
                + ';overflow:hidden;color:'
                + e.attribs["icon-color"]
                + '">4</SPAN>';
        }
        str    +='</SPAN>';
        thismenu.insertAdjacentHTML("BeforeEnd",str);    // insert it inside the menu element
        thisoption = document.all.item('_link_' + menuId + '_' + i);
        thisoption.menuId = menuId;    // save some references and initialize some variables
        thisoption.onmouseover = _optionmouseover;
        thisoption.onmouseout = _optionmouseout;
        prevBottom = thisoption.style.pixelTop + (e.attribs["height"] - e.attribs["border-width"]);    // where should the next one draw?
        if(ary[i].length > 0){        // uhoh, if there is a submenu here, better draw it!
            thisoption.menuChild=_menus.length;    // tell this option that it has a child
            _create(e,ary[i]);
        }
    }
    thismenu.style.pixelHeight = prevBottom;    // set the height on the menu element
}
/////////////////////

///////////////////////////////////////////
///////////////////////////////////////////
//// All the following are used on the "fly"
//// as needed during the documents life
////
////

var _menus = new Array();    // global array of menus
var _currentMenu = null;    // temporary storage of the current and current root menu elements
var _rootMenu = null;
var _rootKludge = null;
var _zIndex = 1;

/////////////////////
//// show the menu for this object
function _rootmouseover(){
    var e = window.event.srcElement;
    if(_rootMenu != null){
        _menus[_rootMenu].close();
    }
    _rootMenu = e.menuId;    // store a temporary reference
    _rootKludge = e.menuId;
    var attribs = _eat_attrib(e.getAttribute("menu"));    // initialize its position based on the config
    _menus[e.menuId].style.pixelTop = attribs["top"];
    _menus[e.menuId].style.pixelLeft = attribs["left"]
    _menus[e.menuId].style.visibility = "visible";
    _menus[e.menuId].style.zIndex = _zIndex++;
}
////////////////////

////////////////////
//// if the mouse leaves the main element,
//// try to close the displayed menu
function _rootmouseout(){
    _rootKludge = null;
    window.setTimeout("if(_rootKludge != " + _rootMenu + "){_menus[" + _rootMenu + "].close();}",_menus[_rootMenu].waitDelay);
}
////////////////////

////////////////////
//// nifty little IMPORTANT recursive function that 
//// returns true only if the id to check
//// is in the heritage of the current menu!
function _heritage(menu,check){
    if(_menus[menu].menuId == check){
        return true;
    }else{
        // if I have a parent, check it, otherwise the answer is no
        if(_menus[menu].menuParent != null){
            return _heritage(_menus[menu].menuParent,check);
        }else{
            return false;
        }
    }
}
///////////////////

///////////////////
//// associated with every menu element object,
//// close this menu unless it is still active
function _close(){
    if(_currentMenu != null){
        if(_heritage(_currentMenu,this.menuId)){
            return;
        }
    }
    if(this.menuChild != null){
        _menus[this.menuChild].close();
    }
    this.style.visibility = "hidden";
    this.menuChild = null;
    this.menuParent = null;
}
//////////////////

//////////////////
//// when the mouse passes over an option
function _optionmouseover(){
    // some ugly kludges to reduce flashing when the mouse passes through a subelement of the option
    if(window.event.srcElement.menuId==null && window.event.fromElement.id == window.event.srcElement.offsetParent.id){
        return;
    }
    if(window.event.fromElement.offsetParent!=null){
        if(window.event.fromElement.menuId==null && window.event.srcElement.id == window.event.fromElement.offsetParent.id){
            return;
        }
    }
    if(window.event.srcElement.menuId==null){
        var e = window.event.srcElement.offsetParent;
    }else{
        var e = window.event.srcElement;
    }
    e.style.background = _menus[e.menuId].highlightBG;        // highlight it
    _currentMenu = e.menuId;        // reset the current menu
    if(_menus[_currentMenu].menuChild != null){    // close any previous children
        _menus[_menus[_currentMenu].menuChild].close();
    }
    if(e.menuChild!=null){        // if this option has a submenu, display it
        _menus[_currentMenu].menuChild = e.menuChild;    // tell the menu it has a child
        _menus[e.menuChild].menuParent = _currentMenu;    // tell the child it has a parent
        _menus[e.menuChild].style.pixelTop = _menus[_currentMenu].style.pixelTop + e.style.pixelTop + _menus[_currentMenu].menuTopoffset;
        _menus[e.menuChild].style.pixelLeft = _menus[_currentMenu].style.pixelLeft + _menus[_currentMenu].style.pixelWidth + _menus[_currentMenu].menuOffset;
        _menus[e.menuChild].style.visibility = "visible";
        _menus[e.menuChild].style.zIndex = _zIndex++;
    }
}
/////////////////

/////////////////
//// when the mouse leaves the option
function _optionmouseout(){
    // some ugly kludges to reduce flashing when the mouse passes through a subelement of the option
    if(window.event.srcElement.menuId==null && window.event.toElement.id == window.event.srcElement.offsetParent.id){
        return;
    }
    if(window.event.toElement.offsetParent!=null){
        if(window.event.toElement.menuId==null && window.event.srcElement.id == window.event.toElement.offsetParent.id){
            return;
        }
    }

if(window.event.srcElement.menuId==null){
        var e = window.event.srcElement.offsetParent;
    }else{
        var e = window.event.srcElement;
    }
    e.style.background = _menus[e.menuId].normalBG;        // unhighlight it
    var to = window.event.toElement.menuId;        // greener pasture?
    if(to!=null){    // leaving to a menu element
        if(to!=e.menuId){    // not this menu
            _menus[_currentMenu].close();
        }else{            // this menu, but hide any existing children
            if(_menus[e.menuId].menuChild!=null){
                _menus[_menus[e.menuId].menuChild].close();
            }
        }
    }else{        // wait a bit, and close the whole menu
        window.setTimeout("_menus[_rootMenu].close()",_menus[_rootMenu].waitDelay);
    }
    _currentMenu = null;
}

function _eat_attrib(str){
    var chunks = new Array();
    var all = new Array();

chunks=str.split(";");

for(var i=0;i<chunks.length;i++){
        var tmpA = new Array();
        tmpA=chunks[i].split(":");
        all[tmpA[0]]=tmpA[1];
    }
    return all;
}

function _strip(str){
    var A = new Array();

A = str.split("\t");
    str = A.join("");

A = str.split("\n");
    str = A.join("");

A = str.split("\r");
    str = A.join("");

return str;
}
//////////////////
</SCRIPT>

<a href="default.htm" menu="top:60;left:200;src:menusrc;">菜單</a>
<div   class="xzrlhpp"   id="menusrc" style="display:none;">
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</div>

所屬頻道：文本鏈接特效/更新時間：2012-10-30

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