jQuery往返城市和日期查询实例讲解

<div class="qline"> 
  <label for="arrcity">出发城市</label><input type="text" name="arrcity" class="input" 
id="arrcity" />  
  <div id="suggest" class="ac_results"></div> 
  <label for="city2">目的城市</label><input type="text" name="city2" class="input" 
id="city2" /> 
  <div id="suggest2" class="ac_results"> </div> 
</div> 
<div class="qline"> 
  <label for="startdate">出发日期</label><input type="text" name="startdate" class="input" 
id="startdate" /> 
  <label for="enddate">返回日期</label><input type="text" name="enddate" class="input" 
id="enddate" /> 
</div> 

.input{border:1px solid #999} 
.qline{line-height:24px; margin:10px} 
#suggest,#suggest2{width:200px;} 
.gray{color:gray;} 
.ac_results {background:#fff;border:1px solid #7f9db9;position: absolute; 
z-index:10000;display: none;} 
.ac_results ul{margin:0;padding:0;list-style:none;} 
.ac_results li a{white-space: nowrap;text-decoration:none;display:block; 
color:#05a;padding:1px 3px;} 
.ac_results li{border:1px solid #fff; line-height:18px} 
.ac_over,.ac_results li a:hover {background:#c8e3fc;} 
.ac_results li a span{float:right;} 
.ac_result_tip{border-bottom:1px dashed #666;padding:3px;} 

<link rel="stylesheet" type="text/css" href="css/jquery-ui.css" /> 

<script type="text/javascript" src="js/jquery.js"></script> 
<script type="text/javascript" src="js/jquery-ui.js"></script> 
<script type="text/javascript" src="js/aircity.js"></script> 
<script type="text/javascript" src="js/j.suggest.js"></script> 

$(function(){ 
  $("#arrcity").suggest(citys,{ 
    hot_list:moncitys, 
    attachObject:"#suggest" 
  }); 
  $("#city2").suggest(citys,{ 
    hot_list:moncitys, 
    attachObject:"#suggest2" 
  }); 
}); 

today=new Date(); 
var year = today.getFullYear(); 
var month = today.getMonth(); 
var day = today.getDate(); 
$("#startdate,#enddate").css("color","#aaa").attr("value","yyyy-mm-dd"); 
$("#startdate,#enddate").datepicker({ 
  minDate: new Date(year, month, day+1), 
  numberOfMonths: 2, 
  onClose:function(){ 
   $(this).css("color","#000"); 
  } 
});