01.<html>
02.<head>
03.<meta charset="utf-8">
04.<script language="javascript">
05. function fncSubmit()
06. {
07.
08. if(document.autoSumForm.tprice5.value > document.autoSumForm.tpro5.value)
09. {
10. alert('ราคาโปร ที่กรอกไม่ถูกต้อง !!');
11. document.autoSumForm.tpro5.focus();
12. return false;
13. }
14.
15. document.autoSumForm.submit();
16. }
17.</script>
18.</head>
19.<body>
20.<form name="autoSumForm" id="autoSumForm" method="post" action="" OnSubmit="return fncSubmit();">
21.Sale :
22.<input type="text" id="tprice5" name="tprice5" size="8" style="background:#FFDEAD;">
23.Pro :
24.<input tabindex="3" type="text" id="tpro5" name="tpro5" size="8" required style="background:#FFDEAD;">
25.
26. <button type="submit"></i> บันทึก</button>
27.</form>
28.</body>
29.</html>
