1. 提交按钮的onclick事件中验证
<script type="text/javascript">
function check(form) {
return true;
}
</script>
<form>
<input type="submit" name="submit1" value="登陆" onclick="return check(this.form)" />
</form>
2. Form表单的onsubmit事件中验证
<script type="text/javascript">
function check(form) {
return true;
}
</script>
<form onsubmit="return check(this)">
<input type="submit" name="submit1" value="登陆" />
</form>
3. 用JS进行提交
<script type="text/javascript">
function check(form) {
document.myform.submit();
}
</script>
<form name="myform">
<input type="button" name="submit1" value="登陆" onclick="check(this.form)" />
</form>