页面校验通用js

/*

==================================================================

公共函数：

功能：检查是否要显示提示窗口

==================================================================

*/

function
IfShow(ShowMsg)

{

if
(ShowMsg ==
""
)

{

return

false
;

}

else

{

return

true
;

}

}

/*

==================================================================

功能：替换空格（将多个连续空格替换为一个空格）

使用：ReplaceSpace(obj)

返回：string

==================================================================

*/

function
ReplaceSpace(str)

{

while
( str.indexOf(
" "
) >= 0 )

{

str = str.replace(
" "
,
" "
);

}

return
str;

}

/*

==================================================================

功能：非空检查，不忽略空格

提示信息：输入框为空，请输入！

使用：isNull(obj,string)

返回：bool

==================================================================

*/

function
isNull(obj,ShowMsg)

{

var
show = IfShow(ShowMsg) ;

//非空检查

if
(obj.value ==
""
)

{

if
(show) alert(ShowMsg);

obj.focus();

obj.select();

return

false
;

}

else

{

return

true
;

}

}

/*

==================================================================

功能：邮箱地址检查

提示信息：未输入邮件地址或邮件地址无效！

使用：MailCheck(obj,string)

返回：bool

==================================================================

*/

function
MailCheck(obj,ShowMsg)

{

var
show = IfShow(ShowMsg) ;

if
(obj.value!=
""
)

{

var
ok1=obj.value.indexOf(
"@"
);

var
ok2=obj.value.indexOf(
"."
);

if
(!((ok1!=-1)&&(ok2!=-1)))

{

if
(show) alert(ShowMsg);

obj.focus();

obj.select();

return

false
;

}

var
allowstrlist =
"&#%<>"
;

var
endvalue =
true
;

for
(i=0;i<obj.value.length;i++)

{

if
(allowstrlist.indexOf(obj.value.substr(i,1))!=-1)

{

endvalue=
false
;

break
;

}

}

if
(endvalue==
false
)

{

if
(show) alert(ShowMsg);

obj.focus();

obj.select();

return

false
;

}

//邮件地址正确

return

true
;

}

else

{

//请输入电子信箱地址

if
(show) alert(ShowMsg);

obj.focus();

obj.select();

return

false
;

}

}

/*

==================================================================

功能：检查输入的是否为数字

提示信息：未输入或输入的不是一个合法的数字！

使用：isNumeric(obj,string)

返回：bool

==================================================================

*/

function
isNumeric(obj,ShowMsg)

{

var
show = IfShow(ShowMsg) ;

var
IfTrue = obj.value.search(/^(-|/+)?/d+(/./d+)?$/) != -1;

if
(show && IfTrue ==
false
)

{

alert(ShowMsg);

obj.focus();

obj.select();

return

false
;

}

else

{

return

true
;

}

}

/*

==================================================================

功能：打印

使用：Print()

返回：

==================================================================

*/

function
Print()

{

document.all.print.style.display =
"none"
;

window.print();

window.close();

}

/*

==================================================================

功能：判断是否为日期(格式:yyyy-mm-dd)

提示信息：未输入或输入的日期格式错误！

使用：isDate(obj,string)

返回：bool

==================================================================

*/

function
isDate(obj,ShowMsg)

{

var
show = IfShow(ShowMsg) ;

if
(obj.value==
null
)

{

if
(show) alert(ShowMsg);

return

false
;

}

if
(obj.value==
""
)

{

if
(show) alert(ShowMsg);

return

false
;

}

var
datePat=/^(/d{2}|/d{4})(/-)(/d{1,2})(/-)(/d{1,2})$/;

var
dateStr=obj.value;

// is the format ok?

var
matchArray = dateStr.match(datePat);

if
(matchArray==
null
)

{

if
(show) alert(ShowMsg);

return

false
;

}

year=matchArray[1];

month=matchArray[3];

day=matchArray[5];

if
(year.length!=4 || month.length!=2 || day.length!=2)

{

if
(show) alert(ShowMsg);

return

false
;

}

if
(month < 1 || month > 12)

{

if
(show) alert(ShowMsg);

return

false
;

}

if
(day < 1 || day > 31)

{

if
(show) alert(ShowMsg);

return

false
;

}

if
((month==4 || month==6 || month==9 || month==11) && day==31)

{

if
(show) alert(ShowMsg);

return

false
;

}

if
(month==2)

{

var
isleap=(year % 4==0 && (year % 100 !=0 || year % 400==0));

if
(day>29 || ((day==29) && (!isleap)))

{

if
(show) alert(ShowMsg);

return

false
;

}

}

return

true
;

}

/*

==================================================================

功能：日期大小判断(格式：yyyy-mm-dd)

提示信息：未输入或输入的开始日期大于结束日期！

使用：JudgeDate(obj1,obj2,string)

返回：bool

==================================================================

*/

function
JudgeDate(obj1,obj2,ShowMsg)

{

var
show = IfShow(ShowMsg) ;

var
eva = isDate(obj1,
""
) && isDate(obj2,
""
);

if
(obj1.value!=
""
&& obj2.value!=
""
& eva !=
false
)

{

var
date1 = obj1.value;

var
myDate1 = Date.parse(date1.replace(
"-"
,
"/"
));

var
date2 = obj2.value;

var
myDate2 = Date.parse(date2.replace(
"-"
,
"/"
));

if
(myDate1 > myDate2)

{

if
(show) alert(ShowMsg);

return

false
;

}

else

{

return

true
;

}

}

else

{

if
(show) alert(ShowMsg);

return

false
;

}

}

/*

==================================================================

功能：字符串操作,去除字符串两边的空格

使用：Trim(string)

返回：string

==================================================================

*/

/*

==================================================================

功能：去除左边的空格

使用：LTrim(string)

返回：string

==================================================================

*/

function
LTrim(str)

{

var
whitespace =
new
String(
" /t/n/r"
);

var
s =
new
String(str);

if
(whitespace.indexOf(s.charAt(0)) != -1)

{

var
j=0, i = s.length;

while
(j < i && whitespace.indexOf(s.charAt(j)) != -1)

{

j++;

}

s = s.substring(j, i);

}

return
s;

}

/*

==================================================================

功能：去除右边的空格

使用：RTrim(string)

返回：string

==================================================================

*/

function
RTrim(str)

{

var
whitespace =
new
String(
" /t/n/r"
);

var
s =
new
String(str);

if
(whitespace.indexOf(s.charAt(s.length-1)) != -1)

{

var
i = s.length - 1;

while
(i >= 0 && whitespace.indexOf(s.charAt(i)) != -1)

{

i--;

}

s = s.substring(0, i+1);

}

return
s;

}

//去除前后空格

function
Trim(str)

{

return
RTrim(LTrim(str));

}

/*

==================================================================

功能：无效字符的检测（不允许输入特殊字符）

提示信息：未输入或输入包含非法字符

使用：CheckChar(obj,Lchar,string)

Lchar：要检查的特殊字符

返回：bool

==================================================================

*/

function
CheckChar(obj,Lchar,ShowMsg)

{

var
show = IfShow(ShowMsg);

var
strlist = Lchar;
//"~!@#$%^&*?<>/"/'";

//无效字符的检测

if
(obj.value!=
""
)

{

var
tmpbool=
true
;

for
(i=0;i<obj.value.length;i++)

{

if
(strlist.indexOf(obj.value.substr(i,1))!=-1)

{

tmpbool=
false
;

break
;

}

else

{}

}

if
(tmpbool==
false
)

{

if
(show) alert(ShowMsg + strlist);

obj.focus();

obj.select();

return

false
;

}

else

{

return

true
;

}

}

else

{

if
(show) alert(ShowMsg + strlist);

return

false
;

}

}

/*

==================================================================

功能：判断是否为整数、正整数、负整数、正整数+0、负整数+0

提示信息：参数错误或输入的不是一个（整数）。。

使用：isInt(obj,string,int or string,string)

(测试对象,+ or - or empty,empty or 0,显示信息)

空 整数

+ 正整数

- 负整数

返回：bool

==================================================================

*/

function
isInt(obj,sign,zero,ShowMsg)

{

var
show = IfShow(ShowMsg);

var
objStr = obj.value;

var
reg;

var
bolzero;

if
(Trim(objStr)==
""
)

{

if
(show) alert(ShowMsg);

obj.focus();

obj.select();

return

false
;

}

else

{

objStr=objStr.toString();

}

if
((sign==
null
)||(Trim(sign)==
""
))

{

sign=
"+-"
;

}

if
((zero==
null
)||(Trim(zero)==
""
))

{

bolzero=
false
;

}

else

{

zero=zero.toString();

if
(zero==0)

{

bolzero=
true
;

}

else

{

if
(show) alert(ShowMsg);

obj.focus();

obj.select();

return

false
;

}

}

switch
(sign)

{

case

"+-"
:

//整数

reg=/(^-?|^/+?)/d+$/;

break
;

case

"+"
:

if
(!bolzero)

{

//正整数

reg=/^/+?[0-9]*[1-9][0-9]*$/;

}

else

{

//正整数+0

//reg=/^/+?/d+$/;

reg=/^/+?[0-9]*[0-9][0-9]*$/;

}

break
;

case

"-"
:

if
(!bolzero)

{

//负整数

reg=/^-[0-9]*[1-9][0-9]*$/;

}

else

{

//负整数+0

//reg=/^-/d+$/;

reg=/^-[0-9]*[0-9][0-9]*$/;

}

break
;

default
:

if
(show) alert(ShowMsg);

obj.focus();

obj.select();

return

false
;

break
;

}

var
r=objStr.match(reg);

if
(r==
null
)

{

if
(show) alert(ShowMsg);

obj.focus();

obj.select();

return

false
;

}

else

{

return

true
;

}

}

/*

==================================================================

功能：判断是否为浮点数、正浮点数、负浮点数、正浮点数+0、负浮点数+0

提示信息：参数错误或输入的不是一个（浮点数）。。

使用：isFloat(obj,string,int or string,string)

(测试对象,+ or - or empty,empty or 0,提示信息)

参数二：

空 浮点数

+ 正浮点数

- 负浮点数

返回：bool

==================================================================

*/

function
isFloat(obj,sign,zero,ShowMsg)

{

var
show = IfShow(ShowMsg);

var
objStr = obj.value;

var
reg;

var
bolzero;

if
(Trim(objStr)==
""
)

{

if
(show) alert(ShowMsg);

obj.focus();

obj.select();

return

false
;

}

else

{

objStr=objStr.toString();

}

if
((sign==
null
)||(Trim(sign)==
""
))

{

sign=
"+-"
;

}

if
((zero==
null
)||(Trim(zero)==
""
))

{

bolzero=
false
;

}

else

{

zero=zero.toString();

if
(zero==0)

{

bolzero=
true
;

}

else

{

if
(show) alert(ShowMsg);

obj.focus();

obj.select();

return

false
;

}

}

switch
(sign)

{

case

"+-"
:

//浮点数

reg=/^((-?|/+?)/d+)(/./d+)?$/;

break
;

case

"+"
:

if
(!bolzero)

{

//正浮点数

reg=/^/+?(([0-9]+/.[0-9]*[1-9][0-9]*)|([0-9]*[1-9][0-9]*/.[0-9]+)|([0-9]*[1-9][0-9]*))$/;

}

else

{

//正浮点数+0

reg=/^/+?/d+(/./d+)?$/;

}

break
;

case

"-"
:

if
(!bolzero)

{

//负浮点数

reg=/^-(([0-9]+/.[0-9]*[1-9][0-9]*)|([0-9]*[1-9][0-9]*/.[0-9]+)|([0-9]*[1-9][0-9]*))$/;

}

else

{

//负浮点数+0

reg=/^((-/d+(/./d+)?)|(0+(/.0+)?))$/;

}

break
;

default
:

if
(show) alert(ShowMsg);

obj.focus();

obj.select();

return

false
;

break
;

}

var
r=objStr.match(reg);

if
(r==
null
)

{

if
(show) alert(ShowMsg);

obj.focus();

obj.select();

return

false
;

}

else

{

return

true
;

}

}

/*

==================================================================

功能：验证身份证号码是否有效

提示信息：未输入或输入身份证号不正确！

使用：isIDno(obj,string)

返回：bool

==================================================================

*/

function
isIDno(obj,ShowMsg)

{

var
show = IfShow(ShowMsg);

//aCity={11:"北
京",12:"天津",13:"河北",14:"山西",15:"内蒙古",21:"辽宁",22:"吉林",23:"黑龙江",31:"上
海",32:"江苏",33:"浙江",34:"安徽",35:"福建",36:"江西",37:"山东",41:"河南",42:"湖北",43:"湖
南",44:"广东",45:"广西",46:"海南",50:"重庆",51:"四川",52:"贵州",53:"云南",54:"西藏",61:"陕
西",62:"甘肃",63:"青海",64:"宁夏",65:"新疆",71:"台湾",81:"香港",82:"澳门",91:"国外"};

var
aCity =
"11,12,13,14,15,21,22,23,31,32,33,34,35,36,37,41,42,43,44,45,46,50,51,52,53,54,61,62,63,64,65,71,81,82,91"

var
iSum = 0;

var
info =
""
;

var
idCardLength = obj.value.length;

if
(!/^/d{17}(/d|x)$/i.test(obj.value)&&!/^/d{15}$/i.test(obj.value))

{

if
(show) alert(ShowMsg);

obj.focus();

obj.select();

return

false
;

}

//在后面的运算中x相当于数字10,所以转换成a

obj.value = obj.value.replace(/x$/i,
"a"
);

var
curCity = obj.value.substr(0,2);

if
(!(aCity.indexOf(curCity) > 0) )

{

if
(show) alert(ShowMsg);

obj.focus();

obj.select();

return

false
;

}

if
(idCardLength==18)

{

sBirthday=obj.value.substr(6,4)+
"-"
+Number(obj.value.substr(10,2))+
"-"
+Number(obj.value.substr(12,2));

var
d =
new
Date(sBirthday.replace(/-/g,
"/"
))

if
(sBirthday!=(d.getFullYear()+
"-"
+ (d.getMonth()+1) +
"-"
+ d.getDate()))

{

if
(show)

alert(ShowMsg);

obj.fo