DEMO----------有問(wèn)題請(qǐng)指出
DEMO----------有問(wèn)題請(qǐng)指出
朝朝暮暮兮
2015-06-09
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2015-06-09
代碼截錯(cuò)了，再來(lái)一遍
<!doctype html>
<html>
<head>
? <meta charset="UTF-8">
? <title>下拉菜單</title>
? <style type="text/css">
??? body,ul,li{ margin:0; padding:0; font-size:13px;}
??? ul,li{list-style:none;}
??? #divselect{width:186px; margin:80px auto; position:relative; z-index:10000;}
??? #divselect cite{width:150px; height:24px;line-height:24px; display:block; color:#807a62; cursor:pointer;font-style:normal;
??? padding-left:4px; padding-right:30px; border:1px solid #333333; }
??? #divselect ul{width:184px;border:1px solid #333333; background-color:#ffffff; position:absolute; z-index:20000; margin-top:-1px; display:none;}
??? #divselect ul li{height:24px; line-height:24px;}
??? #divselect ul li a{display:block; height:24px; color:#333333; text-decoration:none; padding-left:10px; padding-right:10px;}
? </style>
? <script type="text/javascript">
??? window.onload=function(){
????? var box=document.getElementById('divselect'),
????? title=box.getElementsByTagName('cite')[0],
????? menu=box.getElementsByTagName('ul')[0],
????? as=box.getElementsByTagName('a'),
????? index=-1;
? ?
??? // 點(diǎn)擊三角時(shí)
????? title.onclick=function(event){
?????? ?
??????? menu.style.display="block";
??????? event.stopPropagation();
??????? for(var j=0;j<menu_li.length;j++){
????????? menu_li[j].style.backgroundColor = "#fff";
??????? }
????? }
????? document.onkeyup=function(event){
??????? if(event.keyCode==38){
????????? index--;
????????? if(index<0){
??????????? index=menu_li.length;
????????? }
????????? for(var j=0;j<menu_li.length;j++){
??????????? menu_li[j].style.backgroundColor = "#fff";
????????? }
????????? menu_li[index].style.backgroundColor = "#ddd";
??????? }
??????? else if(event.keyCode==40){
????????? index++;
????????? if(index>=menu_li.length){
??????????? index = 0;
????????? }
????????? for(var j=0;j<menu_li.length;j++){
??????????? menu_li[j].style.backgroundColor = "#fff";
????????? }
????????? menu_li[index].style.backgroundColor = "#ddd";
??????? }
??????? else if(event.keyCode==13){
????????? var a = menu_li[index].getElementsByTagName("a")
????????? title.innerHTML=a[0].innerHTML;
????????? menu.style.display="none";
???????? ?
??????? }
????? }
?? // 滑過(guò)滑過(guò)、離開(kāi)、點(diǎn)擊每個(gè)選項(xiàng)時(shí)
????? // 執(zhí)行腳本
????? var menu_li;
????? var i;
????? menu_li = menu.getElementsByTagName("li");
????? for(i=0;i<menu_li.length;i++){
????????? menu_li[i].index = i;
????????? menu_li[i].onmouseover=function(){
???????????? for(var j=0;j<menu_li.length;j++){
????????????????? menu_li[j].style.backgroundColor = "#fff";
??????????????? }
??????????? this.style.backgroundColor = "#ddd";
??????????? index = this.index;
????????? }
????????? menu_li[i].onmouseleave=function(){
??????????? this.style.backgroundColor = "#fff";
??????????? index = this.index;
????????? }
????????? menu_li[i].onclick=function(){
??????????? var a = menu_li[index].getElementsByTagName("a")
??????????? title.innerHTML=a[0].innerHTML;
??????????? menu.style.display="none";
???????? ?
????????? }
????? }
?? }
?? </script>
</head>
<body>
? <div id="divselect">
????? <cite>請(qǐng)選擇分類</cite>
????? <ul>
???????? <li id="li"><a href="javascript:;" selectid="1">ASP開(kāi)發(fā)</a></li>
???????? <li><a href="javascript:;" selectid="2">.NET開(kāi)發(fā)</a></li>
???????? <li><a href="javascript:;" selectid="3">PHP開(kāi)發(fā)</a></li>
???????? <li><a href="javascript:;" selectid="4">Javascript開(kāi)發(fā)</a></li>
???????? <li><a href="javascript:;" selectid="5">Java特效</a></li>
????? </ul>
??? </div>
</body>
</html>