我比较喜欢这样写
在FORM里加入这个
<form name="
your form name " method="post" action="" enctype="multipart/form-data"
onSubmit="return checkform()" >
然后
复制程式
<script language="JavaScript">
function checkform(){
if( your form name .name.value==""){
alert("『帐号』栏不可为空白");
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)输入错误");
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就是你的表单元件的NAME
当IF是TRUE时,他就会执行
xxxx.oooo.focus();
focus就会自动到错误的那个地方,很方便吧
