/* $Id : region.js 4865 2007-01-31 14:04:10Z paulgao $ */
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var region = new Object();
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region.isAdmin = false;
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region.loadRegions = function(parent, type, target)
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{
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Ajax.call(region.getFileName(), 'type=' + type + '&target=' + target + "&parent=" + parent , region.response, "GET", "JSON");
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}
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/* *
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* 载入指定的国家下所有的省份
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*
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* @country integer 国家的编号
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* @selName string 列表框的名称
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*/
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region.loadProvinces = function(country, selName)
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{
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var objName = (typeof selName == "undefined") ? "selProvinces" : selName;
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region.loadRegions(country, 1, objName);
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}
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/* *
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* 载入指定的省份下所有的城市
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*
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* @province integer 省份的编号
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* @selName string 列表框的名称
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*/
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region.loadCities = function(province, selName)
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{
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var objName = (typeof selName == "undefined") ? "selCities" : selName;
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region.loadRegions(province, 2, objName);
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}
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/* *
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* 载入指定的城市下的区 / 县
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*
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* @city integer 城市的编号
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* @selName string 列表框的名称
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*/
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region.loadDistricts = function(city, selName)
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{
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var objName = (typeof selName == "undefined") ? "selDistricts" : selName;
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region.loadRegions(city, 3, objName);
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}
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/* *
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* 处理下拉列表改变的函数
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*
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* @obj object 下拉列表
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* @type integer 类型
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* @selName string 目标列表框的名称
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*/
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region.changed = function(obj, type, selName)
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{
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var parent = obj.options[obj.selectedIndex].value;
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region.loadRegions(parent, type, selName);
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}
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region.response = function(result, text_result)
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{
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var sel = document.getElementById(result.target);
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sel.length = 1;
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sel.selectedIndex = 0;
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sel.style.display = (result.regions.length == 0 && ! region.isAdmin && result.type + 0 == 4) ? "none" : '';//morestock_morecity
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if (document.all)
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{
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sel.fireEvent("onchange");
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}
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else
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{
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var evt = document.createEvent("HTMLEvents");
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evt.initEvent('change', true, true);
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sel.dispatchEvent(evt);
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}
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if (result.regions)
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{
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for (i = 0; i < result.regions.length; i ++ )
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{
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var opt = document.createElement("OPTION");
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opt.value = result.regions[i].region_id;
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opt.text = result.regions[i].region_name;
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sel.options.add(opt);
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}
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}
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}
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region.getFileName = function()
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{
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if (region.isAdmin)
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{
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return "../region.php";
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}
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else
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{
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return "region.php";
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}
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}
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