function change_dir(locationid)
 {
var obj;
obj=document.getElementById("ClassID");
obj.length=0;
 var i;
 for (i=0;i < onecount_er; i++)
 {
 if (subcat_er[i][2] == locationid)
 { 
 obj.options[obj.length] = new Option(subcat_er[i][0], subcat_er[i][1]);
 } 
 } 
 }
var onecount_yi;
onecount_yi=0;
subcat_yi = new Array();
count_yi = 0; 

subcat_yi[0] = new Array("房屋信息","1","0"); 

subcat_yi[1] = new Array("求职招聘","8","0"); 

subcat_yi[2] = new Array("招商交易","15","0"); 

subcat_yi[3] = new Array("生活服务","22","0"); 

subcat_yi[4] = new Array("中介信息","29","0"); 

onecount_yi=5;
var onecount_er;
onecount_er=0;
subcat_er = new Array();
count_er = 0;

subcat_er[0] = new Array("房屋出租","2","1"); 

subcat_er[1] = new Array("房屋求租","3","1"); 

subcat_er[2] = new Array("房屋合租","4","1"); 

subcat_er[3] = new Array("商品房买卖","5","1"); 

subcat_er[4] = new Array("商铺租转","6","1"); 

subcat_er[5] = new Array("厂房仓库","7","1"); 

subcat_er[6] = new Array("个人求职","9","8"); 

subcat_er[7] = new Array("普通工人","10","8"); 

subcat_er[8] = new Array("技术人员","11","8"); 

subcat_er[9] = new Array("外贸营销","12","8"); 

subcat_er[10] = new Array("财会后勤","13","8"); 

subcat_er[11] = new Array("兼职实习","14","8"); 

subcat_er[12] = new Array("物流快递","16","15"); 

subcat_er[13] = new Array("餐饮娱乐","17","15"); 

subcat_er[14] = new Array("加工信息","18","15"); 

subcat_er[15] = new Array("土特产品","19","15"); 

subcat_er[16] = new Array("打折促销","20","15"); 

subcat_er[17] = new Array("二手交易","21","15"); 

subcat_er[18] = new Array("家政家教","23","22"); 

subcat_er[19] = new Array("征婚交友","24","22"); 

subcat_er[20] = new Array("公告公示","25","22"); 

subcat_er[21] = new Array("维修装修","26","22"); 

subcat_er[22] = new Array("教育培训","27","22"); 

subcat_er[23] = new Array("其他服务","28","22"); 

subcat_er[24] = new Array("人才中介","30","29"); 

subcat_er[25] = new Array("房产中介","31","29"); 

subcat_er[26] = new Array("婚姻中介","32","29"); 

onecount_er=27