/**
 * 当省下拉选择框改变时，生成市下拉框选项
 * @param prov "省"下拉框对象
 * @param city "市"下拉框对象
 * @return
 */
var selectedcity_id = '';
function changeProvince(prov, city)
{
	var pro_id = prov.options[prov.selectedIndex].value;
	if(!selectedcity_id && city.selectedIndex > 0)
	{
		selectedcity_id = city.options[city.selectedIndex].value;
	}
	city.options.length = 1;
	if(pro_id == 0 || pro_id == '')
	{
		return;
	}
	
	jQuery.ajax({
		url: "/ajax/listCity",
		type: "POST",
		dataType: "json",
		data: {province_id: pro_id},
		success: function(data){
			var result = data.result;
			if(result != 'ok')
			{
				if(data.msg)
				{
					alert(data.msg);
				}
			}
			else if(result == 'ok')
			{
				var list = data.list;
				for(var i = 0; i < list.length; i ++)
				{
					var r = list[i];
					var city_id = r.city_id;
					var city_name = r.city_name;
					city.options.add(new Option(city_name, city_id));
					if(city_id == selectedcity_id)
					{
						city.selectedIndex = i + 1;
					}
				}
			}
			else
			{
				//alert(data);
			}
		},
		error: function(data){
			alert(data.responseText);
		}
	});
}
/*
var allForms = document.forms;
for(var indForm = 0; indForm < allForms.length; indForm ++)
{
	var aForm = allForms[indForm];
	
}*/