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
在一个form用一个SUBMIT(或button)分别提交到两个处理表单页面的代码
用Javascript读取中文COOKIE的解决办法
功能很全的精品JS计算器
永不消失的title提示代码
一直复略了的一个问题,关于表单重复提交
初探jquery——表单应用范例
懒就要懒到底——鼠标自动点击(含时间判断)
关于表单的两点交互体验改进技巧
javascript知识点收藏
用Javascript做flash做的事..才完成的一个类.Auntion Action var 0.1
如何使页面打开时input就被选中?
点选TOP后并不是直接跳到页顶的,而是滚动上去的
js玩一玩WSH吧
【最新漏洞】IE中使用Rds.DataSpace下载并运行病毒文件
select选择事件问题
SUN的《AJAX与J2EE》全文译了
你真的了解JavaScript吗?
极酷的javascirpt,让你随意编辑任何网页
用javascript编写的第一人称射击游戏
轻轻松松学习JavaScript

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: 308 ::
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>