下拉列表

    <div id=‘DropList‘ style=‘height:150px;width:300px;z-index:999;background-color:white;border:1px solid;position:absolute;display:none;overflow:scroll‘></div>

<script type="text/javascript">
var loupancityvalue="";
$("#u_loupancity").bind("keyup", function () {
var loupancity = $("#u_loupancity").val();
if (loupancity != "" && loupancityvalue != loupancity) {
loupancityvalue = loupancity;
var x = $(this).offset().top;
var y = $(this).offset().left;
var h = $(this).height();
var w = $(this).width();
$("#DropList").css("top", x + h + "px").css("left", y + "px").css("width", w + "px");
$("#DropList").attr("name", $(this).attr("id"));
$.ajax({
type: "POST",
url: "/Business/LouPanManage/GetCityName.do",
data: { loupancity: loupancity },
success: function (data) {
$("#DropList").html(data);
$("#DropList").show();

}
})
}
else {
loupancityvalue = "";
}
})
var loupannamevalue = "";
$("#u_loupanname").live("keyup", function () {
var loupanname = $("#u_loupanname").val();
if (loupanname != "" && loupannamevalue != loupanname) {
loupannamevalue = loupanname;
var loupancity = $("#u_loupancity").val();
var x = $(this).offset().top;
var y = $(this).offset().left;
var h = $(this).height();
var w = $(this).width();
$("#DropList").css("top", x + h + "px").css("left", y + "px").css("width", w + "px");
$("#DropList").attr("name", $(this).attr("id"));

$.ajax({
type: "POST",
url: "/Business/LouPanManage/GetLouPanName.do",
data: { loupancity: loupancity, loupanname: loupanname },
success: function (data) {
$("#DropList").html(data);
$("#DropList").show();

}
})
}
else {
loupannamevalue = "";
}
})

$("$li[name=‘listli‘]").live("click", function () {
var id = $("#DropList").attr("name");
$("#" + id).val($(this).html());
if ($(this).attr("id") != undefined)
{
$("#loupanid").val($(this).attr("id"));
}
$("#DropList").hide();
})

</script>

下拉列表

原文：http://www.cnblogs.com/xiguanjiandan/p/4024982.html