javaScript 给Select添加项
<script language="javascript" type="text/javascript">
var option1=new Option("one","one");
var option2=new Option("two","two",true);
var option5=new Option("three","three",false,true)
document.getElementById("id").options[0]=option1;
document.getElementById("id").options[1]=option1;
document.getElementById("id").options[2]=option1;
document.myForm.like.options[6]=new Option("four","four");
</script>
