var m1 = "歡迎光臨....." 
                    var m2 = "性及健康教育網頁    作者: 張建利 陳家明  莊建華 潘松有"
                    var Message=m1+m2; 

   var place=1;
   function scrollIn() {
     window.status=Message.substring(0, place);
     if (place >= Message.length) {
        place=1;
        window.setTimeout("scrollOut()",300); 
     } else {
        place++;
        window.setTimeout("scrollIn()",50); 
     } 
   }
   function scrollOut() {
     window.status=Message.substring(place, Message.length);
     if (place >= Message.length) {
       place=1;
       window.setTimeout("scrollIn()", 100);
     } else {
       place++;
       window.setTimeout("scrollOut()", 50);
     }
   }

function selChange(theSel,baseURL,targetWin)
{
  var currSel=theSel.selectedIndex;

  if(currSel==0)
        return;
     var currURL=theSel.options[currSel].value;
  baseURL=baseURL.substring(0,baseURL.lastIndexOf("/")+1);
  targetWin.location.href=baseURL+currURL;

  theSel.selectedIndex=0;
}

function back(){
history.go(-1)}