Javascript实现的自动验证函数

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2<HTML>

3<HEAD>

4<TITLE> New Document </TITLE>

5 <meta http-equiv="content-type" content="text/html; charset=shift_jis" />

6 <meta http-equiv="pragma" content="no-cache">

7 <meta http-equiv="cache-control" content="no-cache">

8 <meta http-equiv="expires" content="0">

9<script src="common.js"></script>

10<script src="validate.js"></script>

12</HEAD>

14<BODY>

15<FORM METHOD=POST ACTION="">

16ＩＤ<INPUT TYPE="text" id="txtInt" NAME="txtInt" maxlength="6" feildtype="integer" msg=",<%=IMSG0002%>" ><br>

17ＩＤ<INPUT TYPE="text" id="txtInt" NAME="txtInt" maxlength="6" feildtype="integer" msg=",<%=IMSG0002%>" ><br>

18ＩＤ<INPUT TYPE="text" id="txtInt" NAME="txtInt" maxlength="6" feildtype="integer" msg=",<%=IMSG0002%>" ><br>

19ＩＤ<INPUT TYPE="text" id="txtInt" NAME="txtInt" maxlength="6" feildtype="integer" msg=",<%=IMSG0002%>" ><br>

21名称<INPUT TYPE="text" id="txtString" NAME="txtString" maxlength="5" feildtype="string" msg="<%=IMSG0003%>,<%=IMSG0004%>" mustitem="true"><br>

22名称<INPUT TYPE="text" id="txtString" NAME="txtString" maxlength="5" feildtype="string" msg="<%=IMSG0003%>,<%=IMSG0004%>" mustitem="true"><br>

23名称<INPUT TYPE="text" id="txtString" NAME="txtString" maxlength="5" feildtype="string" msg="<%=IMSG0003%>,<%=IMSG0004%>" mustitem="true"><br>

25名称2<INPUT TYPE="text" id="txtStr" NAME="txtStr" maxlength="5" feildtype="string" msg="<%=IMSG0003%>,<%=IMSG0004%>" mustitem="true"><br>

26<INPUT TYPE="button" value="submit" onclick="validate(); return false;">

27<SCRIPT LANGUAGE="JavaScript">

28<!--

29//validate()

30//-->

31</SCRIPT>

32</FORM>

33</BODY>

34</HTML>

validate.js

function validate(){

3 //var objs = document.all;

4 //var Elements = document.getElementsByTagName("*");

5 var Elements;

6 var ctlArray;

7 var ctlArrayName;

8 var i, j;

9 var elLen, arrLen;

10 var msgs;

12 Elements = document.getElementsByTagName("input");

13 arrName ="";

15 for ( i in Elements ) {

16 elLen = Elements[i].length;

18 if (elLen > 1) {

19 ctlArray = Elements[i];

20 arrLen = ctlArray.length;

22 if (arrName != ctlArray[0].name) {

23 arrName = ctlArray[0].name;

25 for (j=0; j < arrLen; j++) {

26 if (checkValue(ctlArray[j]) == false) {

27 return false;

28 }

29 }

31 }

33 }else{

35 if (checkValue(Elements[i]) == false) {

36 return false;

37 }

38 }

39 }

41 return true;

42}

44function checkValue (obj){

46 var len;

47 len = obj.maxLength;

49 if ( obj.type == "text" ) {

51 //if (obj.msg != undefined ) {

52 if ( obj.msg ) {

53 msgs = obj.msg.split(",");

54 } else {

55 return true;

56 }

58 if ( trim(obj.value) == "" && obj.mustitem && obj.mustitem == "true") {

59 alert(msgs[0]);

60 getFocusSelect(obj);

61 return false;

62 }else {

64 if ( trim(obj.value) != ""&& obj.feildtype && obj.feildtype == "integer" ) {

66 if ( checkNumLen(obj.value, len) == false ) {

67 alert(msgs[1]);

68 getFocusSelect(obj);

69 return false;

70 }

72 } else if ( trim(obj.value) != "" && obj.feildtype && obj.feildtype == "string" ) {

74 if ( getLenthByByte(trim(obj.value)) > len){

75 alert(msgs[1]);

76 getFocusSelect(obj);

77 return false;

78 }

79 }

80 }

81 }

83}

message.inc

2Const IMSG0001 = "ID必须输入！"

3Const IMSG0002 = "ID输入格式错误！"

4Const IMSG0003 = "名称必须输入！"

5Const IMSG0004 = "名称输入格式错误！"

6%>