function login_submit(){
		 if(document.login_form.login_id.value==''){
		       alert("請輸入戶口代號!")
		 } else if(document.login_form.login_id.value.length>45){
		        alert("請輸入正確的戶口代號!")
		 } else if(document.login_form.member_password.value==''){
		        alert("請輸入密碼!");
		 } else if(document.login_form.member_password.value.length>20){
		        alert("密碼超過最大長度，請重新輸入");
		 } else { 
		 	document.login_form.from.value=top.location.href;
		 	document.login_form.toDo.value='login';             	
		 	document.login_form.submit(); 
		 }
	}
	function clickLogOut(){
		document.login_form.from.value=top.location.href;
		document.login_form.toDo.value='logout';
		document.login_form.submit(); 
	}

  function popup_win(dest, self_name, self_w, self_h, scroll) {
    var thisWindow = window.open(dest,self_name,'width='+self_w+',height='+self_h+',toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars='+scroll+',copyhistory=yes,resizable=no');
    thisWindow.focus();
  }