<script language="JavaScript">
function surfto(form) 
{      
 var myindex=form.dest.selectedIndex
    location=form.dest.options[myindex].value;
}
</SCRIPT>
<FORM NAME="form1"> 
 <SELECT NAME="dest" SIZE=4>  
  <OPTION SELECTED VALUE="">選項(xiàng)</OPTION>
  <OPTION VALUE="">站內(nèi)搜索</OPTION>
  <OPTION VALUE="">聊天室</OPTION>
  <OPTION VALUE="">資料查詢</OPTION>
</SELECT>
<INPUT TYPE="BUTTON" VALUE="GO!" onClick="surfto(form1)">
</FORM>