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调用百度搜索，输入自动显示下拉关键字（可获取具体下拉内容）
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
<script type="text/javascript" src="http://localhost/zxxxck/mysuggest.js"></script>
<style type="text/css" media="screen">
body {
font: 11px arial;
}
.suggest_link {
background-color: #FFFFFF;
padding: 2px 6px 2px 6px;
}
.suggest_link_over {
background-color: #E8F2FE;
padding: 2px 6px 2px 6px;
}
#search_suggest {
position: absolute;
background-color: #FFFFFF;
text-align: left;
border: 1px solid #000000;
}
</style>
</head>
<body>
<div style="width: 500px;">
<form id="frmSearch" action="">
<input type="text" id="txtSearch" name="txtSearch" alt="Search Criteria" onkeyup="searchSuggest();" onkeydown="searchSuggest();" autocomplete="off" />
<input type="submit" id="cmdSearch" name="cmdSearch" value="Search" alt="Run Search" /><br />
<div id="search_suggest">
</div>
</form>
</div>
<br /><br /><br /><br /><br /><br /><br /><br /><br />
<br /><br /><br /><br /><br /><br /><br /><br /><br />
<br /><br /><br /><br /><br /><br /><br /><br /><br />
<p id="baidu_infor"></p>
</body>
</html>
mysuggest.js
window.baidu=new Array();
function searchSuggest() {
var head = document.getElementsByTagName("head")[0];
var str = encodeURIComponent(document.getElementById('txtSearch').value);
var url = 'http://suggestion.baidu.com/su?wd='+str+'&t='+Math.round(new Date().getTime()/1000);
load_script(url,function(){
window.baidu.sug = function(params){
var list = params.s;
var ss = document.getElementById('search_suggest')
ss.innerHTML = '';
for(i=0; i < list.length - 1; i++) {
var suggest = '<div onmouseover="javascript:suggestOver(this);" ';
suggest += 'onmouseout="javascript:suggestOut(this);" ';
suggest += 'onclick="javascript:setSearch(this.innerHTML);" ';
suggest += 'class="suggest_link">' + list[i] + '</div>';
ss.innerHTML += suggest;
}
document.getElementById("baidu_infor").innerHTML = ss.innerHTML;
};
});
}
function load_script(url, callback){
var head = document.getElementsByTagName('head')[0];
var script = document.createElement('script');
script.type = 'text/javascript';
script.src = url;
script.onload = script.onreadystatechange = function(){
if((!this.readyState || this.readyState === "loaded" || this.readyState === "complete")){
callback && callback();
script.onload = script.onreadystatechange = null;
if ( head && script.parentNode ) {
head.removeChild( script );
}
}
};
head.insertBefore( script, head.firstChild );
}
//Mouse over function
function suggestOver(div_value) {
div_value.className = 'suggest_link_over';
}
//Mouse out function
function suggestOut(div_value) {
div_value.className = 'suggest_link';
}
//Click function
function setSearch(value) {
document.getElementById('txtSearch').value = value;
document.getElementById('search_suggest').innerHTML = '';
}