当前位置: 首页 > 图文教程 > 网络编程 > Javascript > javascript 多种搜索引擎集成的页面实现代码

Javascript
js 判断 enter 事件
谷歌浏览器 insertCell与appendChild的区别
从JavaScript 到 JQuery (1)学习小结
JavaScript实现动态增加文件域表单
JavaScript DOM 添加事件
Javascript 跨域访问解决方案
检测是否已安装 .NET Framework 3.5的js脚本
JavaScript 获得选中文本内容的方法
Javascript 获取链接(url)参数的方法
javascript Ext JS 状态默认存储时间
动态为事件添加js代码示例
JSON扫盲帖 JSON.as类教程
JavaScript 全面解析各种浏览器网页中的JS 执行顺序
js实现权限树的更新权限时的全选全消功能
javascript Table 中2个列（TD）的交换实现代码
js表数据排序 sort table data
javascript css在IE和Firefox中区别分析
JAVASCRIPT IE 与 FF中兼容问题小结
判断多个元素(RADIO,CHECKBOX等)是否被选择的原理说明
csdn 批量接受好友邀请

No. « 126 127 128 129 »

技术文章搜索

关键字

Javascript 中的 javascript 多种搜索引擎集成的页面实现代码

出处:互联网   整理: 软晨网（RuanChen.com）   发布: 2010-01-10   浏览: 265 ::
收藏到网摘: n/a

这个页面是为了方便自己同时使用多种搜索引擎（呵呵我用其作默认主页），在IE5/IE6/FireFox下均运行正常，效果如下图 － 输入一个关键词，鼠标点击后面的搜索引擎链接，即可进入到该引擎的页面
－ 如果输入关键词后敲回车，则使用默认搜索引擎，而每选择新的搜索引擎，默认引擎也会随之改变
－ 自动记忆上次使用的搜索引擎，后面添加*

源代码如下，使用了多种IE/FF的适应办法：
复制代码 代码如下:

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<style type="text/css">
<!--
.normal {font-family: "Verdana","Arial";font-size:14px}
.small {font-family: "Verdana","Arial";font-size:12px}
body { font-family: "Verdana","Arial";font-size:14px}
td {font-family: "Verdana","Arial";font-size:14px}
th {font-family: "Verdana","Arial";font-size:15px}
input {font-family: "Verdana","Arial";font-size:14px}
a {text-decoration:underline; color:blue}
a:link { text-decoration:underline; color: blue }
a:visited { text-decoration:underline; color: blue }
a:hover { text-decoration: underline; color: red }
-->
</style>
<title>My Portal</title>
<script language="javascript">
// 这一段使得FireFox也支持IE的innerText方法
function isIE(){
if (window.navigator.userAgent.toLowerCase().indexOf("msie")>=1)
return true;
else
return false;
}
if(!isIE()){ //firefox innerText define
HTMLElement.prototype.__defineGetter__( "innerText",
function(){
var anyString = "";
var childS = this.childNodes;
for(var i=0; i <childS.length; i++) {
if(childS[i].nodeType==1)
anyString += childS[i].tagName=="BR" ? '\n' : childS[i].innerText;
else if(childS[i].nodeType==3)
anyString += childS[i].nodeValue;
}
return anyString;
}
);
HTMLElement.prototype.__defineSetter__( "innerText",
function(sText){
this.textContent=sText;
}
);
}
// 这一段使得FireFox的HTMLElement具有click方法（add click method to HTMLElement in Mozilla）
try {
// create span element so that HTMLElement is accessible
document.createElement('span');
HTMLElement.prototype.click = function () {
if (typeof this.onclick == 'function')
this.onclick({type: 'click'});
};
}
catch (e) {
// alert('click method for HTMLElement couldn\'t be added');
}
// 对HTMLAnchorElement 加入onclick事件
try {
// create a element so that HTMLAnchorElement is accessible
document.createElement('a');
HTMLElement.prototype.click = function () {
if (typeof this.onclick == 'function') {
if (this.onclick({type: 'click'}) && this.href)
window.open(this.href, this.target? this.target : '_self');
}
else if (this.href)
window.open(this.href, this.target? this.target : '_self');
};
}
catch (e) {
// alert('click method for HTMLAnchorElement couldn\'t be added');
}
// 跟踪回车键事件
function captureKeys (evt) {
var keyCode = evt.keyCode ? evt.keyCode :
evt.charCode ? evt.charCode : evt.which;
if (keyCode == 13) {
// cancel key:
if (evt.preventDefault) {
evt.preventDefault();
}
var dq = getCookie('default-engine');
if( dq == null) dq = "baidu_txt";
submit_query( dq );
return false;
}
return true;
}
// cookie 功能函数
function getCookie(cookieName)
{
var cookieString = document.cookie;
var start =cookieString.indexOf(cookieName+'=');
if(start == -1)
return null;
start += cookieName.length + 1;
var end = cookieString.indexOf(';', start);
if(end == -1)
return unescape(cookieString.substring(start));
return unescape(cookieString.substring(start,end));
}
function setCookie(cookieName, cookieValue)
{
var expires = new Date();
expires.setTime( expires.getTime() + 3*30*24*60*60*1000); // 3 months
document.cookie = cookieName + '=' + escape(cookieValue)+';expires='+expires.toGMTString();
}
function removeCookie(cookieName)
{
var expires = new Date();
expires.setTime( expires.getTime() - 1);
document.cookie = cookieName + '=fooxxx;expires='+expires.toGMTString();
}
function $(id) {
return document.getElementById(id);
}
// 调式Object用，适用于IE，Firefox下可用firebug
function dumpObject(obj)
{
var temp="";
for (x in obj)
temp += x + ": " + obj[x] + "\n";
var popup = window.createPopup();
popup.document.body.innerHTML = '<textarea rows=30 cols=40>' + temp + '</textarea>';
popup.show(100, 100, 300, 400, document.body);
}
// 多种查询引擎请求分派
function submit_query(t_query)
{
var keyword = document.getElementById("keyword");
var mylink = document.getElementById("mylink");
var loc = "";
switch(t_query)
{
case "baidu_txt":
loc = "http://www.baidu.com/s?wd=" + keyword.value;
break;
case "baidu_img":
loc = "http://image.baidu.com/i?ct=201326592&lm=-1&tn=baiduimagenojs&pv=&word=" + keyword.value + "&z=0&pn=0&rn=16&cl=2";
break;
case "yodao_txt":
loc = "http://www.yodao.com/search?q=" + encodeURI(keyword.value) + "&ue=utf8&keyfrom=web.index";
break;
case "yodao_img":
loc = "http://image.yodao.com/search?q=" + encodeURI(keyword.value) + "&ue=utf8&keyfrom=image.index";
break;
case "yodao_dict":
loc = "http://dict.yodao.com/search?q=" + encodeURI(keyword.value) + "&ue=utf8&keyfrom=dict.index";
break;
case "yodao_blog":
loc = "http://blog.yodao.com/search?q=" + encodeURI(keyword.value) + "&ue=utf8&keyfrom=blog.top";
break;
case "iask_ditu":
loc = "http://ditu.iask.com/a/r.php?cl=北京&key=" + keyword.value;
break;
case "verycd":
loc = "http://www.verycd.com/search/folders/" + encodeURI(keyword.value);
break;
case "google_txt":
loc = encodeURI("http://www.google.com/search?hl=en&q=" + keyword.value +"&btnG=Google+Search");
break;
case "yahoo_txt":
loc = "http://search.yahoo.com/search?p="+encodeURI(keyword.value)+"&vc=&fr=yfp-t-501&toggle=1&cop=mss&ei=UTF-8&fp_ip=CN";
break;
case "trans_en":
loc = "http://209.85.171.104/translate_c?hl=en&sl=en&tl=zh-CN&u=http://" + keyword.value + "/&usg=ALkJrhijPevZUxPtrHDj94k1U9Wo8x7S8g";
break;
case "google_code":
loc = "http://www.google.com/codesearch?q=" + keyword.value + "&hl=en&btnG=Search+Code";
break;
case "google_scholar":
loc = "http://scholar.google.com/scholar?q=" + keyword.value + "&hl=en&lr=&btnG=Search";
break;
}
setEngine(t_query);
setCookie('default-engine', t_query);
mylink.href= loc;
mylink.click();
}
function getDefaultEngine()
{
var dq = getCookie('default-engine');
if( dq == null) dq = "baidu_txt";
return dq;
}
function setDefaultEngine()
{
var old_e = getDefaultEngine();
if( $(old_e).innerText.indexOf('*') < 0)
$(old_e).innerText = $(old_e).innerText + '*';
}
function setEngine( new_e )
{
var old_e = getDefaultEngine();
if( $(old_e).innerText.indexOf('*') >= 0)
$(old_e).innerText = $(old_e).innerText.replace('*','');
if( $(new_e).innerText.indexOf('*') < 0)
$(new_e).innerText = $(new_e).innerText + '*';
setCookie('default-engine', new_e);
}
</script>
</head>
<body onload='setDefaultEngine()'>
<table border="0" width="100%">
<tr><td>
<a href="http://www.google.com" id="mylink" target="_blank">Search:</a>
<input type="text" name="keyword" size="20" id="keyword" onkeypress="return captureKeys(event);">
<a href="#" id='baidu_txt' onclick="submit_query('baidu_txt')">百度</a>
<a href="#" id='google_txt' onclick="submit_query('google_txt')">Google</a>
<a href="#" id='yodao_txt' onclick="submit_query('yodao_txt')">有道</a>
<a href="#" id='yodao_blog' onclick="submit_query('yodao_blog')">博客</a>
<a href="#" id='google_code' onclick="submit_query('google_code')">代码</a>
<a href="#" id='google_scholar' onclick="submit_query('google_scholar')">论文</a>
<a href="#" id='baidu_img' onclick="submit_query('baidu_img')">百图</a>
<a href="#" id='yodao_img' onclick="submit_query('yodao_img')">有图</a>
<a href="#" id='yodao_dict' onclick="submit_query('yodao_dict')">词典</a>
<a href="#" id='iask_ditu' onclick="submit_query('iask_ditu')">地图</a>
<a href="#" id='verycd' onclick="submit_query('verycd')">CD</a>
<a href="#" id='yahoo_txt' onclick="submit_query('yahoo_txt')">Yahoo</a>
<a href="#" id='trans_en' onclick="submit_query('trans_en')">翻译</a>
</td></tr>
</table>
</body>
</html>