多个options关联，select之间乱序

select标签中可能会有很多数据关联，在不考虑它们顺序的情况下，解决方法
showOptions:在不考虑合法性的情况下，将options的条件全部显示在文档中，之前被选中的option还被选中，执行checkOptions():检测文档的条件合法性，不合法的选项将会被删除

$(document).ready(function(){
(function(){
   var Main = {//主控对象
        init:function(){
            
        }
   };
   var Search = {//查询对象
        options: [],
        tempOptions:[],
        init: function(){
            this.getOptions();
            this.showOptions();
            this.checkOptions();
            this.eventAttach();
        },
        getOptions: function(){
            
        //OM：option 码
            this.options = {
                XWLB:{
                    type: "OM",
                    n: "学位类别",//中文名字
                    o: [//options value,显示名字,合法条件
                        ["","不限",""],
                        ["201","哲学博士学位","{type} == 1 || {type} == 5"],
                        ["202","经济学博士","{ZYDM} == '010101' || {ZYDM} == '010102'"]
                    ]//选项
                },
                ZYDM:{
                    type: "OM",
                    n: "专业代码",
                    o: [
                        ["","不限",""],
                        ["010101","Max主义哲学",""],
                        ["010102","Max主义哲学",""]
                    ]
                }
            };    

        },
        showOptions: function(s){
            var html = "<table><tr>";
            var n = 0;
            for(var i in this.options){
                n ++;
                if(!(n % 3)) html += "</tr><tr>";
                var op = this.options[i];
                html += "<td>" + op.n + "</td>";
                switch(op.type){
                    case "OM": {
                       html += "<td><select id='" + i + "' name='" + i + "'>";
                       var temp = $("#" + i).val();//得到原来的selected被选中的选项
                       for(var j in op.o){
                            var o = op.o[j];
                            if(temp == o[0]){//被选中的依然被选中，如果合法
                                html += "<option selected='selected' id='i" + o[0] + "' value='" + o[0] + "'>" + o[1] + "</option>";
                            }else html += "<option  id='i" + o[0] + "' value='" + o[0] + "'>" + o[1] + "</option>";
                       }
                       html += "</select>";

                    }
                    break;
                }
                html += "</td>";
            }
            html += "</tr></table>";
            $(".right").html(html);
            this.eventAttach();
        },
        checkOptions: function(){//将不合法的剔除掉
            for(var i in this.options){
                var op = this.options[i];
                switch(op.type){
                    case "OM":{
                       for(var j in op.o){
                            var o = op.o[j];
                            if(o[2] != ""){//检测条件
                                var flag = eval(o[2].replace(/{([A-Za-z0-9_]+)}/g,"$('#$1').val()"));
                                if(!flag) $("#i" + o[0]).remove();//若不合法，剔除吧
                            }
                       }
                    }break;
                }
            }
        },
        getParameter: function(){
            
        },
        eventAttach: function(){
            var _this = this;
            $(".right select").change(function(){
                _this.showOptions();
                _this.checkOptions();
            });
        },
        unbindEvent: function(){
            $(".right select").unbind("change");
        }
   };
    Search.init();
})();
});