请教问题：地区三级联动代码如何取实际地区进行保存？

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我下载了一个地区三级联动的代码很好用，但取值保存到表单时是保存了地区的代码，我想直接保存地区名，做了很多尝试均不能解决，我是初学者，恳请高手指点，不胜感激！！ <script src="lib/jquery.js"></script> <script src="lib/json.js"></script> <script> function initProvinces(){   removeSelect(document.all.Provinces);   doAddSelect(doAjax("getProvinces.asp"),["Provinces","Province","ProvinceID","Tabdatas"]) } function changeProvinces(){   var val = document.all.Provinces.value;   removeSelect(document.all.Citys)   doAddSelect(doAjax("getCitys.asp?fatherID="+(val==""?null:val)),["Citys","City","CityID","Tabdatas"]) } function changeCitys(){   var val = document.all.Citys.value;   alert(val)   removeSelect(document.all.Areas)   doAddSelect(doAjax("getAreas.asp?fatherID="+(val==""?null:val)),["Areas","Area","AreaID","Tabdatas"]) } function doAjax(_surl){     var str= $.ajax({ url: _surl, async: false }).responseText;  if(str!="")      return eval('(' + str + ')');  else   return null;   }   //params =["selectname","txt","value","Tabdatas1"]   function doAddSelect(_bjson,params){     if(_bjson!=null){      var oSelect=document.getElementById(params[0]);      for(i=0;i<_bjson[params[3]].records.length;i++){       var oOption = document.createElement("OPTION");    var row=_bjson[params[3]].records[i];    oSelect.options.add(oOption);       oOption.innerText =row[params[1]];       oOption.value = row[params[2]];      };  }   }   function removeSelect(object){  object.options.length=0;     var oOption = document.createElement("OPTION");  object.options.add(oOption);     oOption.innerText ="=请选择dd=";     oOption.value ="";   }   window.attachEvent("onload",initProvinces);   document.all.Provinces.attachEvent("onchange",changeProvinces);   document.all.Citys.attachEvent("onchange",changeCitys); </script>