這是一款很棒的全國城市選擇效果，添加城市時先添加組：找到id是"selectSub"中select標簽下，添加option標簽，value屬性遞增，找到id是"selectSub"，按照原有格式添加div，其id屬性遞增；然后添加二級副選框選項：復制id是"selectSub"下任意input標簽，粘貼在需要添加的位置即可，你想擴展的話，配合動態(tài)語言完全可以將城市從數(shù)據(jù)庫中讀取出來。
!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>
title>Ajax彈出式無刷新城市選擇特效/title>
meta http-equiv="content-type" content="text/html;charset=gb2312">
style type="text/css">
BODY {
FONT-SIZE: 12px; PADDING-TOP: 50px
}
H2 {
PADDING-RIGHT: 0px; PADDING-LEFT: 0px; FONT-WEIGHT: bold; FONT-SIZE: 12px; PADDING-BOTTOM: 0px; MARGIN: 0px; PADDING-TOP: 0px
}
.bton {
BORDER-RIGHT: #ccc 1px solid; BORDER-TOP: #ccc 1px solid; BACKGROUND: #ddd; BORDER-LEFT: #ccc 1px solid; BORDER-BOTTOM: #ccc 1px solid
}
.cont {
PADDING-RIGHT: 10px; PADDING-LEFT: 10px; PADDING-BOTTOM: 10px; PADDING-TOP: 10px
}
#main {
MARGIN: 0px auto; WIDTH: 400px
}
#selectItem {
BORDER-RIGHT: #000 1px solid; BORDER-TOP: #000 1px solid; MARGIN-TOP: 10px; Z-INDEX: 2; BACKGROUND: #fff; OVERFLOW: hidden; BORDER-LEFT: #000 1px solid; WIDTH: 400px; BORDER-BOTTOM: #000 1px solid; POSITION: absolute; TOP: 0px
}
#preview {
BORDER-RIGHT: #ccc 1px solid; BORDER-TOP: #ccc 1px solid; MARGIN: 1px; BORDER-LEFT: #ccc 1px solid; BORDER-BOTTOM: #ccc 1px solid
}
#result {
BORDER-RIGHT: #ccc 1px solid; BORDER-TOP: #ccc 1px solid; MARGIN-TOP: 10px; BORDER-LEFT: #ccc 1px solid; BORDER-BOTTOM: #ccc 1px solid
}
.tit {
PADDING-LEFT: 10px; MARGIN: 1px; LINE-HEIGHT: 20px; HEIGHT: 20px
}
.bgc_ccc {
BACKGROUND: #ccc
}
.bgc_eee {
BACKGROUND: #eee
}
.c_999 {
COLOR: #999
}
.pointer {
CURSOR: pointer
}
.left {
FLOAT: left
}
.right {
FLOAT: right
}
.cls {
CLEAR: both; FONT-SIZE: 0px; OVERFLOW: hidden; HEIGHT: 0px
}
#bg {
DISPLAY: none; Z-INDEX: 1; BACKGROUND: #ccc; FILTER: alpha(opacity=70); LEFT: 0px; WIDTH: 100%; POSITION: absolute; TOP: 0px; opacity: 0.7
}
.hidden {
DISPLAY: none
}
.move {
CURSOR: move
}
/style>
/head>
body>
DIV id="main">
INPUT class="bton pointer" onclick="openBg(1);openSelect(1)" type="button" value="請選擇" name="button">
DIV id="result">
DIV class="tit bgc_eee">
H2>您已選擇的城市匯總/H2>
/DIV>
DIV class="cont" id="makeSureItem">/DIV>
/DIV>
/DIV>
DIV id="bg">/DIV>
DIV class="hidden" id="selectItem">
DIV class="tit bgc_ccc move" onmousedown="drag(event,this)">
H2 class="left">請選擇城市：/H2>
SPAN class="pointer right" onclick="openBg(0);openSelect(0);">[取消]/SPAN>
SPAN class="pointer right" onclick="makeSure();">[確定]/SPAN>
/DIV>
DIV class="cls">/DIV>
DIV class="cont">
DIV id="selectSub">
SELECT style="MARGIN-BOTTOM: 10px" onchange="showSelect(this.value)" name="">
OPTION value="0" selected>中國名城/OPTION>
OPTION value="1">魅力城市/OPTION>
OPTION value="2">東北三省/OPTION>
OPTION value="3">世界城市/OPTION>
/SELECT>
DIV id="c00">
INPUT onclick="addPreItem()" type="checkbox" value="北京" name="ck00">北京
INPUT onclick="addPreItem()" type="checkbox" value="福建" name="ck00">福建
INPUT onclick="addPreItem()" type="checkbox" value="四川" name="ck00">四川
INPUT onclick="addPreItem()" type="checkbox" value="江蘇" name="ck00">江蘇
/DIV>
DIV id="c01">
INPUT onclick="addPreItem()" type="checkbox" value="上海" name="ck01">上海
INPUT onclick="addPreItem()" type="checkbox" value="云南" name="ck01">云南
INPUT onclick="addPreItem()" type="checkbox" value="貴州" name="ck01">貴州
/DIV>
DIV id="c02">
INPUT onclick="addPreItem()" type="checkbox" value="黑龍江" name="ck01">黑龍江
INPUT onclick="addPreItem()" type="checkbox" value="吉林" name="ck01">吉林
INPUT onclick="addPreItem()" type="checkbox" value="遼寧" name="ck01">遼寧
/DIV>
DIV id="c03">
INPUT onclick="addPreItem()" type="checkbox" value="美國" name="ck01">美國
INPUT onclick="addPreItem()" type="checkbox" value="阿富汗" name="ck01">阿富汗
INPUT onclick="addPreItem()" type="checkbox" value="日本" name="ck01">日本
/DIV>
/DIV>
/DIV>
DIV id="preview">
DIV class="tit bgc_eee c_999">
H2>您已選擇：/H2>
/DIV>
DIV class="cont" id="previewItem">/DIV>
/DIV>
/DIV>
script type="text/javascript">
var grow = $("selectSub").getElementsByTagName("option").length; //組數(shù)
var showGrow = 0;//已打開組
var selectCount = 0; //已選數(shù)量
showSelect(showGrow);
var items = $("selectSub").getElementsByTagName("input");
function $(o){
if(typeof(o) == "string")
return document.getElementById(o);
return o;
}
function openBg(state){
if(state == 1)
{
$("bg").style.display = "block";
var h = document.body.offsetHeight > document.documentElement.offsetHeight ? document.body.offsetHeight : document.documentElement.offsetHeight;
$("bg").style.height = h + "px";
}
else
{
$("bg").style.display = "none";
}
}
function openSelect(state){
if(state == 1)
{
$("selectItem").style.display = "block";
$("selectItem").style.left = ($("bg").offsetWidth - $("selectItem").offsetWidth)/2 + "px";
$("selectItem").style.top = document.body.scrollTop + 100 + "px";
}
else
{
$("selectItem").style.display = "none";
}
}
function showSelect(id){
for(var i = 0 ; i grow ;i++)
{
$("c0" + i).style.display = "none";
}
$("c0" + id).style.display = "block";
showGrow = id;
}
function open(id,state){
if(state == 1)
$(id).style.display = "block";
$(id).style.diaplay = "none";
}
function addPreItem(){
$("previewItem").innerHTML = "";
var len = 0 ;
for(var i = 0 ; i items.length ; i++)
{
if(items[i].checked == true)
{
var mes = "input type='checkbox' checked='true' value='"+ items[i].value +"' onclick='copyItem(\"previewItem\",\"previewItem\");same(this);'>" + items[i].value;
$("previewItem").innerHTML += mes;
}
}
}
function makeSure(){
openBg(0);
openSelect(0);
copyItem("previewItem","makeSureItem")
}
function copyHTML(id1,id2){
$(id2).innerHTML = $("id1").innerHTML;
}
function copyItem(id1,id2){
var mes = "";
var items2 = $(id1).getElementsByTagName("input");
for(var i = 0 ; i items2.length ; i++)
{
if(items2[i].checked == true)
{
mes += "input type='checkbox' checked='true' value='"+ items2[i].value +"' onclick='copyItem(\"" + id2+ "\",\""+ id1 +"\");same(this);'>" + items2[i].value;
}
}
$(id2).innerHTML = "";
$(id2).innerHTML += mes;
}
function same(ck){
for(var i = 0 ; i items.length ; i++)
{
if(ck.value == items[i].value)
{
items[i].checked = ck.checked;
}
}
}
var oDrag = "";
var ox,oy,nx,ny,dy,dx;
function drag(e,o){
var e = e ? e : event;
var mouseD = document.all ? 1 : 0;
if(e.button == mouseD)
{
oDrag = o.parentNode;
ox = e.clientX;
oy = e.clientY;
}
}
function dragPro(e){
if(oDrag != "")
{
var e = e ? e : event;
dx = parseInt($(oDrag).style.left);
dy = parseInt($(oDrag).style.top);
nx = e.clientX;
ny = e.clientY;
$(oDrag).style.left = (dx + ( nx - ox )) + "px";
$(oDrag).style.top = (dy + ( ny - oy )) + "px";
ox = nx;
oy = ny;
}
}
document.onmouseup = function(){oDrag = "";}
document.onmousemove = function(event){dragPro(event);}
/script>
/body>
/html>
