PHP form DEMO

noteWenForm.php

<script type="text/javascript">
	function checkFunc(){
		var f = document.form.check;
		var b = document.form.YourName;

		if (b.value == ""){
			alert("請填寫姓名")
			return false;						
		}
		if (f.checked){
			
		}else{
			alert("請打勾")
			return false;					
		}

		if (b.value != null && f.checked){
			return true;
		}
	}
</script>
<form name="form" method="post" action="finished.php" onsubmit="return checkFunc();">
	<input style="width:100px" type="text" name="YourName">
	<input type="checkbox" name="check">
	<input type="submit" name="submit" value="送出">
</form>