function changecity(cityfid) //经过CS文件处理后状态设置 参数是城市分类号
    {
		
		for (i=0;i<form.ddlProvince.length ;i++ )
			{
			  if(form.ddlProvince.options[i].value==cityfid.substring(0,3)+"000") //定位在原来的省份选择
				{
				form.ddlProvince.options[i].selected=true;
				break;
				}
			}

		form.ddlCity.length = 0; 
		for (i=0;i < cityarr.length; i++)//初始化城市数据
			{
			  if (cityarr[i][1].substring(0,3) == cityfid.substring(0,3))
				{
				  form.ddlCity.options[form.ddlCity.length] = new Option(cityarr[i][0], cityarr[i][1]);
				}
			}

		for (i=0;i<form.ddlCity.length ;i++ )
			{
			  if(form.ddlCity.options[i].value==cityfid) //定位在原来的城市选择
				{
				form.ddlCity.options[i].selected=true;
				break;
				}
			}
    }