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
我也种棵OO树JXTree[js+css+xml]
新浪中用来显示flash的函数
JXTree对象，读取外部xml文件数据，生成树的函数
用js来格式化字符串示例模仿css
js prototype 格式化数字 By shawl.qiu
新浪刚打开页面出来的全屏广告代码
记录几个javascript有关的小细节
Some tips of wmi scripting in jscript (1)
JavaScript Try...Catch 声明的 使用方法
JS版获取字符串真实长度和取固定长度的字符串函数
Javascript中的数学函数
ArrayList类（增强版）
javascript中巧用“闭包”实现程序的暂停执行功能
javascript判断单选框或复选框是否选中方法集锦
FireFox的getYear的注意事项
JavaScript For...In 使用方法
JavaScript Switch 声明
JavaScript If...Else 声明
JavaScript For 循环
JavaScript While 循环 教程

No. « 59 60 61 62 »

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: 245 ::
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>