js中如何把selected传递到option上

在做一个WEB应用时,需要根据数据库中读出的值设定select的选中项.,并且里面18个字段都要这样.于是整理出了下面一个JS方法,这样可以很容易实现.

<SCRIPT   LANGUAGE="JavaScript">   
  <!-- 
  function assignSelected(index,val)   
  ...{   
  
  var   f   =   index;   
  for(i=0;i<f.options.length;i++)   
  ...{   
        if(f.options(i).value==val)   
        ...{   
              f.selectedIndex   =   i   
        }   
  }   
  }     
  //-->   
</SCRIPT>
<!--从数据库中读取并附值给select对象-->
<script language="javascript">
  assignSelected(document.submit.upminAge,<%=rs("upminAge")%>); 
  assignSelected(document.submit.upmaxAge,<%=rs("upmaxAge")%>); 
  assignSelected(document.submit.MinHeight,<%=rs("MinHeight")%>); 
  assignSelected(document.submit.MaxHeight,<%=rs("MaxHeight")%>); 
  assignSelected(document.submit.xueli,'<%=rs("xueli")%>'); 
  assignSelected(document.submit.provience,'<%=rs("provience")%>'); 
  assignSelected(document.submit.city,'<%=rs("city")%>');  
  assignSelected(document.submit.people,'<%=rs("people")%>'); 
            
   assignSelected(document.submit.income,'<%=rs("income")%>'); 
  assignSelected(document.submit.carrer,'<%=rs("carrer")%>');  
  assignSelected(document.submit.address,'<%=rs("address")%>'); 
  
  assignSelected(document.submit.zongjiao,'<%=rs("zongjiao")%>'); 
  assignSelected(document.submit.hunyin,'<%=rs("hunyin")%>');  
  assignSelected(document.submit.child,'<%=rs("child")%>'); 
  
  assignSelected(document.submit.wantchild,'<%=rs("wantchild")%>'); 
  assignSelected(document.submit.smoke,'<%=rs("smoke")%>');  
  assignSelected(document.submit.drink,'<%=rs("drink")%>'); 
  assignSelected(document.submit.isphoto,'<%=rs("isphoto")%>');
   
</script>