我比較喜歡這樣寫
在FORM裡加入這個
<form name="
your form name " method="post" action="" enctype="multipart/form-data"
onSubmit="return checkform()" >
然後
複製程式
<script language="JavaScript">
function checkform(){
if( your form name .name.value==""){
alert("『帳號』欄不可為空白");
your form name .name.focus();}
else if( your form name .email1.value!="" &&(your form name .email1.value.indexOf('@',0)== -1 || your form name .email1.value.indexOf('.',0)== -1)){
alert("EMAIL(一)輸入錯誤");
your form name .email1.focus();}
else if........
else { return true; }
return false;
}
</script>
if(xxxx.oooo.value=="")
xxxx就是你的FORM的NAME
oooo就是你的表單元件的NAME
當IF是TRUE時,他就會執行
xxxx.oooo.focus();
focus就會自動到錯誤的那個地方,很方便吧
