编程 Javascript

网上应用的一个不错common.js脚本

Posted in Javascript onAugust 08, 2007

if (lid == 't1') {
    return 't1_off';
}
else if (lid == 't2') {
    return 't2_off';
}
else if  (lid == 't1_off') {
    return 't1';
}
else if  (lid == 't2_off') {
    return 't2';
}

}

function trim(str) {
return (str + '').replace(/(\s+)$/g, '').replace(/^\s+/g, '');
}

function addbookmark(url, site){
    if(is_ie) {
        window.external.addFavorite(url, site);
    } else {
        alert('Please press "Ctrl+D" to add bookmark');
    }
}

//AJAX_START
var xmlhttp=null;
function createxmlhttp(){
    try {
    xmlhttp=new ActiveXObject("Msxml2.xmlhttp") ;
    }
    catch(e) {
    try {
    xmlhttp=new ActiveXObject("Microsoft.xmlhttp") ;
    }
    catch(oc) {
    xmlhttp=null ;
    }
    }
    if ( !xmlhttp && typeof XMLHttpRequest != "undefined" ) {
    xmlhttp = new XMLHttpRequest();
    }

    if (!xmlhttp) {
      alert("您的浏览器不支AJAX特性,本页某些功能将无法正常使用!");
    }
}

//js操作cookies函数 *********************

function delcookie(name){
setcookie(name, "");
}

function getcookie(name) {
    var cookie_start = document.cookie.indexOf(name);
    var cookie_end = document.cookie.indexOf(";", cookie_start);
    return cookie_start == -1 ? '' : unescape(document.cookie.substring(cookie_start + name.length + 1, (cookie_end > cookie_start ? cookie_end : document.cookie.length)));
}

function setcookie(cookieName, cookieValue, seconds) {
    var expires = new Date();
    var path = "/";
    var domain = "alixixi.com";
    var secure = "";
    expires.setTime(expires.getTime() + seconds);
    document.cookie = escape(cookieName) + '=' + escape(cookieValue)
        + (expires ? '; expires=' + expires.toGMTString() : '')
        + (path ? '; path=' + path : '/')
        + (domain ? '; domain=' + domain : '')
        + (secure ? '; secure' : '');
}

//GetQueryString ***********************
var LocString=String(window.document.location.href);
function GetQueryString(str){
var rs=new RegExp("(^|)"+str+"=([^\&]*)(\&|$)","gi").exec(LocString),tmp;
if(tmp=rs)return tmp[2];
return " ";
}

//VScroll 显示上翻单条标题************************
function _ge(a) {return document.getElementById?document.getElementById(a):null;}
function VScroll() {

    var m_box    = null;
    var m_lineHeight    = 0;
    var m_lineNum    = 0;
    var m_splitStr    = '';
    var m_speed    = 0;
    var m_delay    = 0;

    var m_pos    = 0;
    var m_stopTimes    = 0;
    var m_stop    = false;

    this.init    = function(box,lnum,lheight,speed,delay,split) {
        m_box        = _ge(box);
        m_lineNum    = lnum;
        m_lineHeight    = lheight;
        m_speed        = speed;
        m_delay        = delay;
        m_splitStr        = split;
    }

this.play = function() {

        if ( m_stop ) {
            return;
        }
        m_pos    = m_box.scrollTop;
        if( m_pos % m_lineHeight == 0 && m_stopTimes < m_delay && m_box.scrollTop < m_lineHeight * m_lineNum ) {
            m_stopTimes++;
        } else {
            m_box.scrollTop++;
            if ( m_pos % m_lineHeight == 0 && m_stopTimes >= m_delay ) {
                m_stopTimes    = 0;
            }
        }
        if ( m_box.scrollTop > m_lineHeight * m_lineNum ) {
            m_box.scrollTop    = 0;
        }
    }

    this.show    = function () {
        setInterval( m_self + ".play()", m_speed );
    }
    this.setSelf = function(n) {
        m_self    = n;
    }
    this.stop = function(n) {
        m_stop    = n;
    }

}

function show_date() {

    var today    = new Date();
    var day    = new Array();
    var str    = '';

    day[0]    = "日";
    day[1]    = "一";
    day[2]    = "二";
    day[3]    = "三";
    day[4]    = "四";
    day[5]    = "五";
    day[6]    = "六";

    str    += today.getFullYear();
    str    += "年";
    str    += today.getMonth() + 1;
    str    += "月";
    str    += today.getDate();
    str    += "日";
    str    += " ";
    str    += "星期";
    str    += day[today.getDay()];

return str;
}

//AJAX_END

//运行代码
function runEx(cod1)  {
     cod=document.getElementById(cod1)
      var code=cod.value;
      if (code!=""){
          var newwin=window.open('','','');
          newwin.opener = null
          newwin.document.write(code);
          newwin.document.close();
    }
}
//复制代码
function doCopy2(ID) {
    if (document.all){
         textRange = document.getElementById(ID).createTextRange();
         textRange.execCommand("Copy");
alert('复制成功');
    }
    else{
         alert("此功能只能在IE上有效")
    }
}
//复制代码
function doCopy(obj) {
    var rng = document.body.createTextRange();
    rng.moveToElementText(obj);
    rng.scrollIntoView();
    rng.select();
    rng.execCommand("Copy");
    rng.collapse(false);
}

function doCopyUrl()
{
document.getElementById("CopyUrl").value=parent.location.href;
document.getElementById("CopyUrl").select();
document.execCommand("copy");
alert("网址成功复制到剪贴板！")
}

//另存代码
function doSave(obj) {
    var winname = window.open('', '_blank', 'top=10000');
    winname.document.open('text/html', 'replace');
    winname.document.writeln(obj.value);
    winname.document.execCommand('saveas','','code.htm');
    winname.close();
}

function CheckAll(form)  {
  for (var i=0;i<form.elements.length;i++)    {
    var e = form.elements[i];
    if (e.name != 'chkall')       e.checked = form.chkall.checked;
   }
  }

function chkuserlogin() {
    if (getcookie('userid') == ''||getcookie('userid') == 0||getcookie('username') == '') {
        return false;
    }
    else {
        return true;
    }
}

function chkcookieed() {
    if (getcookie("username") !== "") {
    var url = "/ajax.asp?action=loginmenu";
    url += "&random="+Math.random();
    ajaxPost(url,null,null,"top_login"," ");
    }
}

function userlogout() {
    var url = "/AspCode.asp?getType=logout";
    url += "&random="+Math.random();
    ajaxPost(url,null,null,"top_login","正在退出...");
    chkcookieed();
    alert('欢迎再次光临阿里西西WEB开发社区...');
}

//Cookie解密
function DecodeCookie(str)
{
    var strArr;
    var strRtn="";
    strArr=str.split("a");
    try{
        for (var i=strArr.length-1;i>=0;i--)
        strRtn+=String.fromCharCode(eval(strArr[i]));
    }catch(e){
    }
    return strRtn;
}

function isnumber(str){
var digits="1234567890";
var i=0;
var strlen=str.length;
while((i<strlen)){
var char=str.charAt(i);
if(digits.indexOf(char)==-1)return false;i++;
}
return true;
}

//检查非法字符
//str 要检查的字符
//badwords 非法字符 &|<>=
function checkbadwords(str, badwords) {
if (typeof (str) != "string" || typeof (badwords) != "string") {
return (false);
}
for (i=0; i<badwords.length; i++) {
bad = badwords.charAt(i);
for (j=0; j<str.length; j++) {
if (bad == str.charAt(j)) {
return false;
break;
}
}
}
return true;
}

function bgc(cssid) {
            switch(cssid) {
            case 0    :    this.style.background='#FFFFFF';
            break;
            case 1    :    this.style.background='#E8F5FE';
            break;
            case 2    :    this.style.background='#FFFFDD';
            break;
            case 3    :    this.style.background='#F2FDDB';
            break;
            case 4    :    this.style.background='#FFE7F4';
            break;
            case 5    :    this.style.background='#F7F7F7';
            break;
            default :  this.style.background='#FFFFFF';
            }
}

function addfav(favtitle,favform,favid)
{
location.href = "http://www.alixixi.com/account/user_Favorites.asp?url="+ document.URL +"&favtitle="+ favtitle +"&from="+ favform +"&id=" + favid;
}

function mto(aid) {
location.href = "http://www.alixixi.com/account/user_post.asp?aid=" + aid;
}

function apost(url){
    createxmlhttp();
        //getMode
        url += "&random="+Math.random();
        xmlhttp.open("get",url,true);
        xmlhttp.setRequestHeader("CONTENT-TYPE","application/x-www-form-urlencoded");
        //xmlhttp.onreadystatechange= function () { checkSeo(); } ;
        xmlhttp.send(null);
}

网上应用的一个不错common.js脚本

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