js几个不错的函数 $$()

function map(a,f){f(a);} 
function getRand(a,b) 
{ 
    if(a) 
    { 
        b=b?b:0; 
        return Math.floor(Math.random()*a+b); 
    }else 
    { 
        a = new Date(); 
        return d.getTime(); 
    } 
} 
function $(a){document.write(a);} 
function $$()  
{  
    var elements = new Array(); 
    for (var i = 0; i < arguments.length; i++)  
    {  
      var element = arguments[i];  
      if (typeof element == 'string')  
        element = document.getElementById(element);        if (arguments.length == 1)  
        return element;  
      elements.push(element);  
    }  
    return elements;  
} 
function fGetCookie(name)  
{ 
     var cookieValue = ""; 
      var search = name + "="; 
      if(document.cookie.length > 0)  
    {  
        offset = document.cookie.indexOf(search); 
        if (offset != -1)  
        {  
              offset += search.length; 
              end = document.cookie.indexOf(";", offset); 
              if (end == -1) end = document.cookie.length; 
              cookieValue = unescape(document.cookie.substring(offset, end)); 
        } 
      } 
      return cookieValue; 
} 
function J_get(name) 
{ 
    var js_get  =self.window.document.location.href; 
    var start    =js_get.indexOf(name + '='); 
    if (start == -1) return ''; 
    var len = start + name.length + 1; 
    var end = js_get.indexOf('&',len); 
      if (end == -1) end = js_get.length; 
      return unescape(js_get.substring(len,end)); 
} 
function writeCookie(name, value, hours) 
{ 
    var expire = ""; 
    var domain = "; domain=3water.com; path=/"; 
    if(hours != "")  
    { 
        expire = new Date((new Date()).getTime() + hours * 60 * 60 * 1000); 
        expire = "; expires=" + expire.toGMTString(); 
    } 
    document.cookie = name + "=" + escape(value) + domain; 
} 
function createXMLHttp() 
{ 
    var ret = null; 
    try { 
        ret = new ActiveXObject('Msxml2.XMLHTTP'); 
    } 
    catch (e) { 
        try { 
            ret = new ActiveXObject('Microsoft.XMLHTTP'); 
        } 
        catch (ee) { 
            ret = null; 
        } 
    } 
    if (!ret && typeof XMLHttpRequest != 'undefined') 
        ret = new XMLHttpRequest(); 
    return ret; 
} 
function loadXmlToElement(fragment_url, element_id,mode,de) 
{ 
    var element = $$(element_id); 
    var xmlhttp = createXMLHttp(); 
    var str; 
    xmlhttp.open("GET", fragment_url); 
    xmlhttp.onreadystatechange = function()  
    { 
        if (xmlhttp.readyState == 4 && xmlhttp.status == 200)  
        { 
            if(!mode) 
            { 
                str = xmlhttp.responseXML.getElementsByTagName("data")[0].childNodes[0].nodeValue; 
                if(!element.innerHTML) 
                { 
                    try{ 
                        str = xmlhttp.responseXML.firstChild.childNodes[1].nodeValue; 
                    }catch(e){} 
                } 
            }else if(mode == 'txt') 
            { 
                str = xmlhttp.responseText; 
            } 
            if(de) str = unescape(str); 
            element.innerHTML = str; 
        } 
    } 
    xmlhttp.send(null);     
} 
var oJson = new Object(); 
var fJson =  
{ 
    "data":{},//[0,y,yes,空值]:默认,[-1,n,no]:不运行flush(), 
    "file":{},//附加js代码文件 
    "str":{},//附加JS代码 
    "set":function(element,vars) 
    { 
        for(key in vars) 
        { 
            this[key][element] = vars[key]; 
        } 
    }, 
    "getSrc":function(element) 
    { 
        var rs = ''; 
        if(this['data'][element]) 
        { 
            if(this['data'][element] == 'n' || this['data'][element] == '-1' || this['data'][element] == 'no') 
            { 
                rs +='&gJsonData=n'; 
            } 
        } 
        if(this['str'][element]) 
        { 
            rs +='&gJsonDoStr='+escape(this['str'][element]); 
        } 
        if(this['file'][element]) 
        { 
            rs +='&gJsonDoFile='+escape(this['file'][element]); 
        } 
        return rs; 
    }, 
    "main":function(url,element,un) 
    { 
        un = un?un:0; 
        eval("oJson."+element+" = new fJson.__Json('"+url+"','"+element+"','"+un+"')" ); 
    }, 
    "__Json":function(url,element,un) 
    { 
        var a            = document.getElementById("script_"+element) 
        if(!a) 
        { 
            a            = document.createElement("script"); 
            a.setAttribute("id","script_"+element); 
        } 
        a.un            = un; 
        a.data             = ''; 
        a.src            = url+((url.indexOf('?') == -1 )?'?':'&')+'gJson='+element+fJson.getSrc(element); 
        if(navigator.appVersion.indexOf("MSIE") == -1 ) 
        { 
            document.getElementById(element).insertBefore(a,null); 
        }else 
        { 
            document.body.insertAdjacentElement("BeforeBegin",a);     
        } 
        return a; 
    }, 
    "flush":function(element) 
    { 
        document.getElementById(element).innerHTML =  (oJson[element].un)?unescape(oJson[element].data):oJson[element].data; 
        //oJson[element] = null; 
    }     
} 
/* 应用 */ 
function subPageSelect(b,e,d,a)//b开始 e结束 d默认 a动作 
{  
    var shtml ='<select '+a+'>'; 
    for(var i=b;i<=e;i++) 
    { 
        shtml+='<option value="'+i+'" '+(i==d?shtml+='selected':'')+'>'+i+'</option>'; 
    } 
    shtml+='</select>'; 
    return shtml; 
} 
function err(a,b,c) 
{ 
    if(b) 
    { 
        if(c) 
        { 
            a.src='https://3water.com/space/imgs/all/thu_woman.gif'; 
        }else 
        { 
            a.src='http://v.3water.com:88/img/user_no_photo.gif'; 
        } 
    }else 
    { 
        a.src='http://v.3water.com:88/img/flv_no_photo.gif'; 
    } 
} 
function img_onerr(a) 
{ 
    err(a); 
} 
function gowin(a) 
{ 
    document.location = a;     
} 
function CopyInBoard(hahaUrl,note)  
{              
    note    = note?note:'网址复制成功啦!'; 
    window.clipboardData.setData('text',hahaUrl) 
    alert(note);             
} 
function fDoMask(a,f,s,c,p,color)//a元素  f刷新调函数 s样式 c内容 p透明度 
{  
    a = $$(a); 
    p = p?p:75; 
    s = '<div style="'+(s?s:'text-align:center; margin-top:40px;')+'">'+(c?c:'<img src="https://3water.com/space/imgs/all/loading.gif"  border="0"/> 数据加载中... ')+(f?'[<a href="javascript:'+f+'">刷新</a>]':'')+'</div>'; 
    color = color?color:'#FFFFFF'; 
    if (a.innerHTML != "") 
    { 
        //window.onunload = fCheckStatus; 
        var objBrother = a.childNodes[0]; 
        var b = document.createElement('DIV'); 
        b.setAttribute('id','maskdiv'); 
        b.style.textAlign = "center"; 
        b.style.position = "absolute"; 
        b.style.filter = "alpha(opacity="+p+")"; 
        b.style.opacity = (p / 100); 
        b.style.MozOpacity = (p / 100); 
        b.style.KhtmlOpacity = (p / 100); 
        b.style.width  = a['offsetWidth']+'px'; 
        b.style.height = a['offsetHeight']+'px'; 
        b.style.margin = "0px"; 
        b.style.backgroundColor = color;         
        a.insertBefore(b,objBrother) 
        b.innerHTML = s; 
    } 
} 
function switchDisplay(obj1, obj2) 
{ 
    try 
    { 
        obj1    = $$(obj1); 
        obj2    = $$(obj2); 
        if(obj1.style.display=='') 
        { 
            obj1.style.display='none'; 
            obj2.style.display=''; 
        } 
        else 
        { 
            obj1.style.display=''; 
            obj2.style.display='none'; 
        } 
    }catch (ex) 
    { 
    } 
} 
function getFlashPlayer(vars,playUrl,id,w,h) 
{ 
    playUrl = playUrl?playUrl:'https://3water.com/flashApp/56'; 
    id         = id?id:'siteFlvPlayer'; 
    w = w?w:'440'; 
    h = h?h:'371'; 
    AC_FL_RunContent( 'codebase','http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=7,0,0,0','width',w,'height',h,'id',id,'src',playUrl,'flashvars',vars,'quality','high','scale','noscale','wmode','transparent','name',id,'salign','lt','pluginspage','http://www.macromedia.com/go/getflashplayer','movie',playUrl); //end AC code 
} 
function f_js_playObject(a,h,s,player) 
{ 
    h        = '3water.com';//#.. 
    player    = player?player:'/flashApp/v_player_site_fp7_5.swf'; 
    player    = 'http://'+h+player; 
    s          = s?s:' width="100%" height="100%" '; 
    var _into = ""; 
    _into += '<div id="videoPlayer">'; 
    _into += '<div id="PlayerInfo" style="color:#ffffff;font-weight:bold;text-align:center;display:none;">双击播放器屏幕或者点“全屏”可取消或恢复全屏</div>'; 
    _into += '<div id="flvPlayBack" class="normalSize">'; 
    _into += '<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" '+s+'>'; 
    _into += '<param name="allowScriptAccess" value="always" />'; 
    _into += '<param name="movie" value="'+player+'" />'; 
    _into += '<param name="quality" value="high" />'; 
    _into += '<param name="bgcolor" value="#ffffff" />'; 
    _into += '<param name="FlashVars" value="&'+a+'" />'; 
    _into += '<embed src="'+player+'" flashvars="&'+a+'" quality="high" pluginspage="http://www.macromedia.com/go/getflashplayer"  align="middle" allowScriptAccess="sameDomain" type="application/x-shockwave-flash" '+s+'>'; 
    _into += '</embed>'; 
    _into += '</object>'    ; 
    _into += '</div></div>'; 
    _into += '<div id="maskForIe" style="lexrus:expression(this.style.width=document.body.parentNode.scrollWidth);aether:expression(this.style.height=document.body.parentNode.scrollHeight);display:none;background:#000;filter:alpha(opacity=70);position:absolute !important;left:0;top:0;width:100% !important;"></div>'; 
    _into += '<style>#videoPlayer{margin:0;padding:0 !important;width:440px;height:371px;}#program_player td{padding:0 !important;}'; 
    _into += '.maxmized{z-index:9999;margin:0;padding:0;position:absolute;left:0;top:0;width:100% !important;height:100% !important;filter:alpha(opacity=70);}'; 
    _into += '.maxmized #flvPlayBack{width:580px !important;height:490px !important;}'; 
    _into += '.maxmized #PlayerInfo{width:580px !important;}'; 
    _into += '.normalSize{width:440px;height:371px;}#flvPlayBack{margin:auto;height:100%;}#PlayerInfo{width:440px;}</style>'; 
    _into += '<div style="text-align:center;margin-top:7px;margin-bottom:-8px;color:gray;" id="playerInfo1">如果不能正常播放，请点此<a href="javascript:void(0);" onClick="switchDisplay(\'playerInfo1\', \'playerInfo2\');">查看详情</a></div>'; 
    _into += '<div style="background:#fffbee;border:2px solid #EDBB17;margin-right:4px;margin-top:7px;margin-bottom:-8px;padding:12px;display:none" id="playerInfo2">因以下情况，导致视频无法正常播放，请下载Flash8.0播放器。<a href="http://v.3water.com/flashApp/Flash_AX80.exe">点此下载</a><br>1.如果打开页面只有声音没有视频画面<br>2.播放器无法加载，出现“红X”<br>3.播放器可以加载，但提示版本过低！<br><br>非上述情况下出现无法播放时，请给我们反映！<a href="http://bbs.3water.com/view.html?url=http://bbs.3water.com/data/841/841800.html?sid=11212" target="_blank">点此报告</a><br><br>[<a href="javascript:void(0);" onClick="switchDisplay(\'playerInfo1\', \'playerInfo2\');">关闭详情</a>]</div>'; 
    document.getElementById('js_playObject').innerHTML = _into; 
    FcheckZoom(); 
} 
function zoomMovie(){ 
    var objId='videoPlayer'; 
    var videoObject=document.all?document.all[objId]:document.getElementById(objId); 
    var maskForIe=document.all?document.all['maskForIe']:document.getElementById('maskForIe'); 
    var videoPlayBack=document.all?document.all['flvPlayBack']:document.getElementById('flvPlayBack'); 
    var playerInfo=document.all?document.all['PlayerInfo']:document.getElementById('PlayerInfo'); 
    var searchBox=document.all?document.all['nav_search_form']:document.getElementById('nav_search_form'); 
    var isMaxmized=/.*maxmized.*/i.test(videoObject.className); 
    if(isMaxmized){ 
        videoObject.className='normalSize'; 
        videoObject.style.position=''; 
        videoPlayBack.firstChild.BGCOLOR='ffffff'; 
        playerInfo.style.display='none'; 
        maskForIe.style.display='none'; 
        searchBox.style.display=''; 
    }else{ 
        window.scrollTo(0,0); 
        videoObject.className='maxmized'; 
        videoObject.style.position='absolute'; 
        if(navigator.appName.lastIndexOf('Explorer')!=-1){ 
            videoObject.style.left=(document.body.parentNode.scrollWidth-600)/2; 
            videoObject.style.top='30'; 
            playerInfo.style.display=''; 
            maskForIe.style.display=''; 
        } 
        videoPlayBack.firstChild.BGCOLOR='000000'; 
    } 
    videoObject.onclick=function(){zoomMovie()} 
} 
function FcheckZoom() 
{ 
    var a = J_get('fs'); 
    if (a==1) 
    { 
        zoomMovie(); 
    } 
} 
/* 菜单 */ 
var isOverMainMenu = false; 
var isOverSortMenu = false; 
function showMenu(id){ 
    var a = document.getElementById("MainMenu").getElementsByTagName("a"); 
    for(var i=0;i<a.length;i++){ 
        a[i].onmouseover = function() { 
            if(this.className!="active") this.className = "hover"; 
            showSortMenu(this.id); 
            isOverMainMenu=true; 
        } 
        a[i].onmouseout = function() { 
            if(this.className!="active") this.className = ""; 
            setTimeout("showSortMenu('"+id+"')", 400); 
            isOverMainMenu=false; 
        } 
        if(a[i].id == id) { 
            a[i].className = "active"; 
            showSortMenu(id); 
        } else { 
            a[i].className = ""; 
        } 
    } 
} 
function showSortMenu(id){ 
    var a = document.getElementById("SortMenu"); 
    a.onmouseover = function(){ 
        isOverSortMenu=true; 
    } 
    a.onmouseout = function(){ 
        isOverSortMenu=false; 
    } 
    if(!isOverSortMenu && !isOverMainMenu) { 
        var b = document.getElementById("SortMenu").getElementsByTagName("ul");  
        for(var i=0;i<b.length;i++){ 
            if(b[i].id == "SortMenu_"+id) { 
                b[i].className = "active"; 
            } else { 
                b[i].className = ""; 
            } 
        } 
    } 
} 
/*******************************/ 
var gLoginId             = fGetCookie("member_id");                                            //登录用户ID 
var gLoginHost         = fGetCookie("host");                                                //登录主机名 
var gLoginPass         = fGetCookie("pass_hex");                                            //pass 
var gLoginMember     = fGetCookie("member_login");                                        //member_login 
var gNewMail             = fGetCookie("newmail");                                            //新邮件 
var gKeepMail         = fGetCookie("keepmail");                                            //是否检查邮件的标示 
var gLoginUser         = gLoginId.substring(0,gLoginId.indexOf("@"));                        //登录用户名 
var gIsLogin             = (gLoginHost != "" && gLoginUser != "" && gLoginPass !="" && gLoginMember != "")?true:false; //是否已经登录 
var basedir                = 'http://v.3water.com:88/photo/'; 
var userDir             = fCaculateUrl(gLoginUser); 
function fIsLogin() 
{ 
    return (fGetCookie("host") != "" && fGetCookie("member_id") != "" && fGetCookie("pass_hex") !="" && fGetCookie("member_login") != "")?true:false; 
} 
function fCaculateUrl(userName) 
{ 
    var level1 = 0; 
    var level2 = 0; 
    var k = userName.length; 
    //var arr = new Array(); 
    for(var i=0;i<k;i++) 
    { 
        level1 += userName.charCodeAt(i)*i; 
        level2 += userName.charCodeAt(i)*(2*i+1); 
    } 
    level1 = level1 % 100; 
    level2 = level2 % 100;  
    return level1+'/'+level2; 
} 
document.domain        = "3water.com"; 
window.focus();