/*
===========================================
//是否是邮件
===========================================
*/
String.prototype.isEmail = function()
{
return /^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/.test(this);
}



/*
===========================================
//是否是邮编(中国)
===========================================
*/



String.prototype.isZipCode = function()
{
return /^[\\d]{6}$/.test(this);
}



/*
===========================================
//是否是有汉字
===========================================
*/
String.prototype.existChinese = function()
{
//[\u4E00-\u9FA5]為漢字﹐[\uFE30-\uFFA0]為全角符號
return /^[\x00-\xff]*$/.test(this);
}



/*
===========================================
//是否是合法的文件名/目录名
===========================================
*/
String.prototype.isFileName = function()
{
return !/[\\\/\*\?\|:"<>]/g.test(this);
}



/*
===========================================
//是否是有效链接
===========================================
*/
String.Prototype.isUrl = function()
{
return /^http:\/\/([\w-]+\.)+[\w-]+(/[\w-./?%&=]*)?$/.test(this);
}



/*
===========================================
//是否是有效的身份证(中国)
===========================================
*/
String.prototype.isIDCard = function()
{
var iSum=0;
var info="";
var sId = this;



var 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"};



if(!/^\d{17}(\d|x)$/i.test(sId))
{
return false;
}
sId=sId.replace(/x$/i,"a");
//非法地区
if(aCity[parseInt(sId.substr(0,2))]==null)
{
return false;
}



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



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



//非法生日
if(sBirthday!=(d.getFullYear()+"-"+ (d.getMonth()+1) + "-" + d.getDate()))
{
return false;
}
for(var i = 17;i>=0;i--)
{
iSum += (Math.pow(2,i) % 11) * parseInt(sId.charAt(17 - i),11);
}



if(iSum%11!=1)
{
return false;
}
return true;



}



/*
===========================================
//是否是有效的电话号码(中国)
===========================================
*/
String.prototype.isPhoneCall = function()
{
return /(^[0-9]{3,4}\-[0-9]{3,8}$)|(^[0-9]{3,8}$)|(^\([0-9]{3,4}\)[0-9]{3,8}$)|(^0{0,1}13[0-9]{9}$)/.test(this);
}




/*
===========================================
//是否是数字
===========================================
*/
String.prototype.isNumeric = function(flag)
{
//验证是否是数字
if(isNaN(this))
{



return false;
}



switch(flag)
{



case null://数字
case "":
return true;
case "+"://正数
return/(^\+?|^\d?)\d*\.?\d+$/.test(this);
case "-"://负数
return/^-\d*\.?\d+$/.test(this);
case "i"://整数
return/(^-?|^\+?|\d)\d+$/.test(this);
case "+i"://正整数
return/(^\d+$)|(^\+?\d+$)/.test(this);
case "-i"://负整数
return/^[-]\d+$/.test(this);
case "f"://浮点数
return/(^-?|^\+?|^\d?)\d*\.\d+$/.test(this);
case "+f"://正浮点数
return/(^\+?|^\d?)\d*\.\d+$/.test(this);
case "-f"://负浮点数
return/^[-]\d*\.\d$/.test(this);
default://缺省
return true;
}
}




/*
===========================================
//转换成全角
===========================================
*/
String.prototype.toCase = function()
{
var tmp = "";
for(var i=0;i<this.length;i++)
{
if(this.charCodeAt(i)>0&&this.charCodeAt(i)<255)
{
tmp += String.fromCharCode(this.charCodeAt(i)+65248);
}
else
{
tmp += String.fromCharCode(this.charCodeAt(i));
}
}
return tmp
}



/*
===========================================
//对字符串进行Html编码
===========================================
*/
String.prototype.toHtmlEncode = function
{
var str = this;



str=str.replace("&","&");
str=str.replace("<","<");
str=str.replace(">",">");
str=str.replace("'","&apos;");
str=str.replace("\"",""");



return str;
}





qqdao(青青岛)


精心整理的输入判断js函数



关键词：字符串判断,字符串处理,字串判断,字串处理




//'*********************************************************
// ' Purpose: 判断输入是否为整数字
// ' Inputs: String
// ' Returns: True, False
//'*********************************************************
function onlynumber(str)
{
var i,strlength,tempchar;
str=CStr(str);
if(str=="") return false;
strlength=str.length;
for(i=0;i<strlength;i++)
{
tempchar=str.substring(i,i+1);
if(!(tempchar==0||tempchar==1||tempchar==2||tempchar==3||tempchar==4||tempchar==5||tempchar==6||tempchar==7||tempchar==8||tempchar==9))
{
alert("只能输入数字　");
return false;
}
}
return true;
}
//'*********************************************************




//'*********************************************************
// ' Purpose: 判断输入是否为数值(包括小数点)
// ' Inputs: String
// ' Returns: True, False
//'*********************************************************
function IsFloat(str)
{ var tmp;
var temp;
var i;
tmp =str;
if(str=="") return false;
for(i=0;i<tmp.length;i++)
{temp=tmp.substring(i,i+1);
if((temp>='0'&& temp<='9')||(temp=='.')){} //check input in 0-9 and '.'
else { return false;}
}
return true;
}







//'*********************************************************
// ' Purpose: 判断输入是否为电话号码
// ' Inputs: String
// ' Returns: True, False
//'*********************************************************
function isphonenumber(str)
{
var i,strlengh,tempchar;
str=CStr(str);
if(str=="") return false;
strlength=str.length;
for(i=0;i<strlength;i++)
{
tempchar=str.substring(i,i+1);
if(!(tempchar==0||tempchar==1||tempchar==2||tempchar==3||tempchar==4||tempchar==5||tempchar==6||tempchar==7||tempchar==8||tempchar==9||tempchar=='-'))
{
alert("电话号码只能输入数字和中划线　");
return(false);
}
}
return(true);
}
//'*********************************************************



//'*********************************************************
// ' Purpose: 判断输入是否为Email
// ' Inputs: String
// ' Returns: True, False
//'*********************************************************
function isemail(str)
{
var bflag=true

if (str.indexOf("'")!=-1) {
bflag=false
}
if (str.indexOf("@")==-1) {
bflag=false
}
else if(str.charAt(0)=="@"){
bflag=false
}
return bflag
}



//'*********************************************************
// ' Purpose: 判断输入是否含有为中文
// ' Inputs: String
// ' Returns: True, False
//'*********************************************************
function IsChinese(str)
{
if(escape(str).indexOf("%u")!=-1)
{
return true;
}
return false;
}
//'*********************************************************




//'*********************************************************
// ' Purpose: 判断输入是否含有空格
// ' Inputs: String
// ' Returns: True, False
//'*********************************************************
function checkblank(str)
{
var strlength;
var k;
var ch;
strlength=str.length;
for(k=0;k<=strlength;k++)
{
ch=str.substring(k,k+1);
if(ch==" ")
{
alert("对不起　不能输入空格　");
return false;
}
}
return true;
}
//'*********************************************************








//'*********************************************************
// ' Purpose: 去掉Str两边空格
// ' Inputs: Str
// ' Returns: 去掉两边空格的Str
//'*********************************************************
function trim(str)
{
var i,strlength,t,chartemp,returnstr;
str=CStr(str);
strlength=str.length;
t=str;
for(i=0;i<strlength;i++)
{
chartemp=str.substring(i,i+1);
if(chartemp==" ")
{
t=str.substring(i+1,strlength);
}
else
{
break;
}
}
returnstr=t;
strlength=t.length;
for(i=strlength;i>=0;i--)
{
chartemp=t.substring(i,i-1);
if(chartemp==" ")
{
returnstr=t.substring(i-1,0);
}
else
{
break;
}
}
return (returnstr);
}



//'*********************************************************




//'*********************************************************
// ' Purpose: 将数值类型转化为String
// ' Inputs: int
// ' Returns: String
//'*********************************************************
function CStr(inp)
{
return(""+inp+"");
}
//'*********************************************************




//'*********************************************************
// ' Purpose: 去除不合法字符, ' " < >
// ' Inputs: String
// ' Returns: String
//'*********************************************************
function Rep(str)
{var str1;
str1=str;
str1=replace(str1,"'","`",1,0);
str1=replace(str1,'"',"`",1,0);
str1=replace(str1,"<","(",1,0);
str1=replace(str1,">",")",1,0);
return str1;
}
//'*********************************************************



//'*********************************************************
// ' Purpose: 替代字符
// ' Inputs: 目标String,欲替代的字符,替代成为字符串,大小写是否敏感,是否整字代替
// ' Returns: String
//'*********************************************************
function replace(target,oldTerm,newTerm,caseSens,wordOnly)
{ var wk ;
var ind = 0;
var next = 0;
wk=CStr(target);
if (!caseSens)
{
oldTerm = oldTerm.toLowerCase();
wk = target.toLowerCase();
}
while ((ind = wk.indexOf(oldTerm,next)) >= 0)
{
if (wordOnly)
{
var before = ind - 1;
var after = ind + oldTerm.length;
if (!(space(wk.charAt(before)) && space(wk.charAt(after))))
{
next = ind + oldTerm.length;
continue;
}
}
target = target.substring(0,ind) + newTerm + target.substring(ind+oldTerm.length,target.length);
wk = wk.substring(0,ind) + newTerm + wk.substring(ind+oldTerm.length,wk.length);
next = ind + newTerm.length;
if (next >= wk.length) { break; }
}
return target;
}
//'*********************************************************






几个判断，并强制设置焦点：
//+------------------------------------
// trim 去除字符串两端的空格
String.prototype.trim=function(){return this.replace(/(^\s*)|(\s*$)/g,"")}
//-------------------------------------



// avoidDeadLock 避免设置焦点死循环问题
// 起死原因：以文本框为例，当一个文本框的输入不符合条件时，这时，鼠标点击另一个文本框，触发第一个文本框的离开事件
// 　　，产生设置焦点动作。现在产生了第二个文本框的离开事件，因此也要设置第二个文本框的焦点，造成死锁。
// 解决方案：设置一个全局对象[key]，记录当前触发事件的对象，若其符合条件，则释放该key；若其仍不符合，则key还是指
// 　　向该对象，别的对象触发不到设置焦点的语句。
/////////////////////////////////////////
// 文本框控制函数
//
/////////////////////////////////////////
var g_Obj = null;// 记住旧的控件
// hintFlag参数：0表示没有被别的函数调用，因此出现提示；1表示被调用，不出现警告信息
// focusFlag参数：指示是否要设置其焦点，分情况：0表示有的可为空；1表示有的不为空
// 避免死锁的公共部分
//+------------------------------------
function textCom(obj, hintFlag)
{
if (g_Obj == null)
g_Obj=event.srcElement;
else if ((g_Obj != null) && (hintFlag == 0) && (g_Obj != obj))
{
g_Obj = null;
return;
}
g_Obj.value = g_Obj.value.trim();
}
//-------------------------------------
// 文本框不为空
//+------------------------------------
function TBNotNull(obj, hintFlag)
{
if (g_Obj == null)
g_Obj=event.srcElement;
else if ((g_Obj != null) && (hintFlag == 0) && (g_Obj != obj))
{
g_Obj = null;
return;
}
g_Obj.value = g_Obj.value.trim();



if (g_Obj.value == "")
{
if (hintFlag == 0)
{
g_Obj.focus();
alert("内容不能为空！");
}
return false;
}
else
g_Obj = null;



return true;
}
//-------------------------------------
// 输入内容为数字
//+------------------------------------
function LetNumber(obj, hintFlag, focusFlag)
{
if (g_Obj == null)
g_Obj=event.srcElement;
else if ((g_Obj != null) && (hintFlag == 0) && (g_Obj != obj))
{
g_Obj = null;
return;
}
g_Obj.value = g_Obj.value.trim();



if ((g_Obj.value == "") || isNaN(g_Obj.value))
{
if (hintFlag == 0)
{



g_Obj.value = "";
if (focusFlag == 1)
g_Obj.focus();
else
g_Obj = null;
alert("输入的内容必须为数字！");
}
return false;
}
else
g_Obj = null;



return true;
}
//-------------------------------------
// 输入内容为整数
//+------------------------------------
function LetInteger(obj, hintFlag, focusFlag)
{
if (g_Obj == null)
g_Obj=event.srcElement;
else if ((g_Obj != null) && (hintFlag == 0) && (g_Obj != obj))
{
g_Obj = null;
return;
}
g_Obj.value = g_Obj.value.trim();



if (!/^\d*$/.test(g_Obj.value) || (g_Obj.value == ""))
{
if (hintFlag == 0)
{



g_Obj.value = "";
if (focusFlag == 1)
g_Obj.focus();
else
g_Obj = null;
alert("输入的内容必须为整数！");
}
return false;
}
else
g_Obj = null;



return true;
}
//-------------------------------------
// 输入内容为字母
//+------------------------------------
function LetLetter(obj, hintFlag, focusFlag)
{
if (g_Obj == null)
g_Obj=event.srcElement;
else if ((g_Obj != null) && (hintFlag == 0) && (g_Obj != obj))
{
g_Obj = null;
return;
}



if (!/^[A-Za-z]*$/.test(g_Obj.value))
{
if (hintFlag == 0)
{
alert("输入的内容必须为字母！");
g_Obj.value = "";
if (focusFlag == 1)
g_Obj.focus();
else
g_Obj = null;
}
return false;
}
else
{
g_Obj = null;
}



return true;
}
//-------------------------------------
// 内容大于某值
//+------------------------------------
function LetMoreThan(obj, leftNumber, hintFlag, focusFlag)
{
var ifAlert;// 是否出现警告
if (g_Obj == null)
g_Obj=event.srcElement;
else if ((g_Obj != null) && (hintFlag == 0) && (g_Obj != obj))
{
g_Obj = null;
return;
}



g_Obj.value = g_Obj.value.trim();
if (g_Obj.value == "")
ifAlert = 0;
else
ifAlert = 1;



if ((g_Obj.value == "") || (isNaN(g_Obj.value)) || (g_Obj.value < leftNumber))
{
if (hintFlag == 0)
{
g_Obj.value = "";
if (focusFlag == 1)
g_Obj.focus();
else
g_Obj = null;
// 更友好的提示
if (ifAlert == 1)
{
if (leftNumber == 0)
alert("内容必须为非负数！");
else
alert("输入的内容必须" + leftNumber + "以上！");
}
}
return false;
}
else
g_Obj = null;



return true;
}
//-------------------------------------
// 内容大于某值，整数
//+------------------------------------
function LetMoreThan_Int(obj, leftNumber, hintFlag, focusFlag)
{
var ifAlert;// 是否出现警告
if (g_Obj == null)
g_Obj=event.srcElement;
else if ((g_Obj != null) && (hintFlag == 0) && (g_Obj != obj))
{
g_Obj = null;
return;
}
g_Obj.value = g_Obj.value.trim();
if (g_Obj.value == "")
ifAlert = 0;
else
ifAlert = 1;
if ((g_Obj.value == "") || (isNaN(g_Obj.value) || g_Obj.value < leftNumber) || !/^\d*$/.test(g_Obj.value))
{
if (hintFlag == 0)
{
g_Obj.value = "";
if (focusFlag == 1)
g_Obj.focus();
else
{g_Obj = null;}
if (ifAlert == 1)// 当用户不输入的时候，不出现提示
{
// 更友好的提示
if (leftNumber == 0)
alert("内容必须为非负整数！");
else
alert("且必须在" + leftNumber + "以上！");
}
}
return false;
}
else
g_Obj = null;



return true;
}
//-------------------------------------
// 内容小于某值
//+------------------------------------
function LetLessThan(obj, rightNumber, hintFlag, focusFlag)
{
if (g_Obj == null)
g_Obj=event.srcElement;
else if ((g_Obj != null) && (hintFlag == 0) && (g_Obj != obj))
{
g_Obj = null;
return;
}
g_Obj.value = g_Obj.value.trim();



if ((g_Obj.value == "") || (isNaN(g_Obj.value) || g_Obj.value > rightNumber))
{
if (hintFlag == 0)
{
g_Obj.value = "";
if (focusFlag == 1)
g_Obj.focus();
else
g_Obj = null;
alert("输入的内容必须在" + rightNumber + "以下！");
}
return false;
}
else
{g_Obj = null;}



return true;
}
//-------------------------------------
// 内容介于两值中间
//+------------------------------------
function LetMid(obj, leftNumber, rightNumber, hintFlag, focusFlag)
{
var ifAlert;// 是否出现警告
if (g_Obj == null)
g_Obj=event.srcElement;
else if ((g_Obj != null) && (hintFlag == 0) && (g_Obj != obj))
{
g_Obj = null;
return;
}
g_Obj.value = g_Obj.value.trim();
if (g_Obj.value == "")
ifAlert = 0;
else
ifAlert = 1;
// 首先应该为数字
if (LetNumber(g_Obj, 1))
{
if (!(LetMoreThan(obj,leftNumber,1,0) && LetLessThan(obj,rightNumber,1,0)))
{
if (hintFlag == 0)
{
g_Obj.value = "";
if (focusFlag == 1)
g_Obj.focus();
else
g_Obj = null;
if (ifAlert == 1)// 当用户不输入的时候，不出现提示
alert("输入的内容必须介于" + leftNumber + "和" + rightNumber + "之间！");
}



return false;
}
else
{g_Obj = null;}
}
else
{
if (hintFlag == 0)
{



g_Obj.value = "";
if (focusFlag == 1)
g_Obj.focus();
else
g_Obj = null;
if (ifAlert == 1)
alert("输入的内容必须为数字！\n" +
"且介于" + leftNumber + "和" + rightNumber + "之间！");
}



return false;
}



return true;
}
//-------------------------------------
/////////////////////////////////////////
// 下拉框
/////////////////////////////////////////
// 下拉框，务必选择
//+------------------------------------
function onSelLostFocus(obj)
{
if (g_Obj == null)
{
g_Obj=event.srcElement;
}
else if ((g_Obj!=null) && (g_Obj!=obj))
{
g_Obj = null;
return;
}



if (g_Obj.selectedIndex == 0)
{
g_Obj.focus();
}
else
{
g_Obj = null;
}
}




/*
随风JavaScript函数库
请把经过测试的函数加入库
*/




/********************
函数名称：StrLenthByByte
函数功能：计算字符串的字节长度，即英文算一个，中文算两个字节
函数参数：str,为需要计算长度的字符串
********************/
function StrLenthByByte(str)
{
var len;
var i;
len = 0;
for (i=0;i<str.length;i++)
{
if (str.charCodeAt(i)>255) len+=2; else len++;
}
return len;
}



/********************
函数名称：IsEmailAddress
函数功能：检查Email邮件地址的合法性，合法返回true,反之,返回false
函数参数：obj,需要检查的Email邮件地址
********************/
function IsEmailAddress(obj)
{
var pattern=/^[a-zA-Z0-9\-]+@[a-zA-Z0-9\-\.]+\.([a-zA-Z]{2,3})$/;
if(pattern.test(obj))
{
return true;
}
else
{
return false;
}
}



/********************
函数名称：PopWindow
函数功能：弹出新窗口
函数参数：pageUrl,新窗口地址;WinWidth,窗口的宽；WinHeight,窗口的高
********************/
function PopWindow(pageUrl,WinWidth,WinHeight)
{
var popwin=window.open(pageUrl,"PopWin","scrollbars=yes,toolbar=no,location=no,directories=no,status=no,menubar=no,resizable=no,width="+WinWidth+",height="+WinHeight);
return false;
}



/********************
函数名称：PopRemoteWindow
函数功能：弹出可以控制父窗体的原程窗口
函数参数：pageUrl,新窗口地址;
调用方法：打开窗口：<a href="javascript:popRemoteWindow(url);">Open</a>
控制父窗体：opener.location=url;当然还可以有其他的控制
********************/
function PopRemoteWindow(pageUrl)
{
var remote=window.open(url,"RemoteWindow","scrollbars=yes,toolbar=yes,location=yes,directories=yes,status=yes,menubar=yes,resizable=yes");
if(remote.opener==null)
{
remote.opener=window;
}
}




/********************
函数名称：IsTelephone
函数功能：固话，手机号码检查函数，合法返回true,反之,返回false
函数参数：obj,待检查的号码
检查规则：
　　(1)电话号码由数字、"("、")"和"-"构成
　　(2)电话号码为3到8位
　　(3)如果电话号码中包含有区号，那么区号为三位或四位
　　(4)区号用"("、")"或"-"和其他部分隔开
　　(5)移动电话号码为11或12位，如果为12位,那么第一位为0
　　(6)11位移动电话号码的第一位和第二位为"13"
　　(7)12位移动电话号码的第二位和第三位为"13"
********************/
function IsTelephone(obj)
{
var pattern=/(^[0-9]{3,4}\-[0-9]{3,8}$)|(^[0-9]{3,8}$)|(^\([0-9]{3,4}\)[0-9]{3,8}$)|(^0{0,1}13[0-9]{9}$)/;
if(pattern.test(obj))
{
return true;
}
else
{
return false;
}
}



/********************
函数名称：IsLegality
函数功能：检查字符串的合法性，即是否包含" '字符，包含则返回false;反之返回true
函数参数：obj,需要检测的字符串
********************/
function IsLegality(obj)
{
var intCount1=obj.indexOf("\"",0);
var intCount2=obj.indexOf("\'",0);
if(intCount1>0 || intCount2>0)
{
return false;
}
else
{
return true;
}
}



/********************
函数名称：IsNumber
函数功能：检测字符串是否全为数字
函数参数：str,需要检测的字符串
********************/
function IsNumber(str)
{
var number_chars = "1234567890";
var i;
for (i=0;i<str.length;i++)
{
if (number_chars.indexOf(str.charAt(i))==-1) return false;
}
return true;
}



/********************
函数名称：Trim
函数功能：去除字符串两边的空格
函数参数：str,需要处理的字符串
********************/
function Trim(str)
{
return str.replace(/(^\s*)|(\s*$)/g, "");
}



/********************
函数名称：LTrim
函数功能：去除左边的空格
函数参数：str,需要处理的字符串
********************/
function LTrim(str)
{
return str.replace(/(^\s*)/g, "");
}



/********************
函数名称：RTrim
函数功能：去除右边的空格
函数参数：str,需要处理的字符串
********************/
function RTrim(str)
{
return this.replace(/(\s*$)/g, "");
}



/********************
函数名称：IsNull
函数功能：判断给定字符串是否为空
函数参数：str,需要处理的字符串
********************/
function IsNull(str)
{
if(Trim(str)=="")
{
return false;
}
else
{
return true;
}
}



/********************
函数名称：CookieEnabled
函数功能：判断cookie是否开启
********************/
function CookieEnabled()
{
return (navigator.cookieEnabled)? true : false;
}




/*字符串替换方法*/
function StrReplace(srcString,findString,replaceString,start)
{
//code
}



/*客户端HTML编码*/
function HtmlEncode(str)
{
//code
}




/********************************************************************
**
*函数功能:判断是否是闰年*
*输入参数:数字字符串*
*返回值:true，是闰年/false，其它*
*调用函数:*
**
********************************************************************/
function IsLeapYear(iYear)
{
if (iYear+"" == "undefined" || iYear+""== "null" || iYear+"" == "")
return false;



iYear = parseInt(iYear);
varisValid= false;



if((iYear % 4 == 0 && iYear % 100 != 0) || iYear % 400 == 0)
isValid= true;



return isValid;
}
/********************************************************************
**
*函数功能:取出指定年、月的最后一天*
*输入参数:年份，月份*
*返回值:某年某月的最后一天*
*调用函数:IsLeapYear*
**
********************************************************************/
function GetLastDay(iYear,iMonth)
{
iYear = parseInt(iYear);
iMonth = parseInt(iMonth);



variDay = 31;



if((iMonth==4||iMonth==6||iMonth==9||iMonth==11)&&iDay == 31)
iDay = 30;



if(iMonth==2 )
if (IsLeapYear(iYear))
iDay = 29;
else
iDay = 28;
return iDay;
}
/********************************************************************
**
*函数功能:去字符串的头空和尾空*
*输入参数:字符串*
*返回值:字符串/null如果输入字符串不正确*
*调用函数:TrimLeft() 和 TrimRight()*
**
********************************************************************/
function Trim( str )
{
varresultStr ="";



resultStr =TrimLeft(str);
resultStr =TrimRight(resultStr);



return resultStr;
}



/********************************************************************
**
*函数功能:去字符串的头空*
*输入参数:字符串*
*返回值:字符串/null如果输入字符串不正确*
*调用函数:*
**
********************************************************************/
function TrimLeft( str )
{
varresultStr ="";
vari =len= 0;



if (str+"" == "undefined" || str ==null)
return null;



str+= "";



if (str.length == 0)
resultStr ="";
else
{
len= str.length;



while ((i <= len) && (str.charAt(i)== " "))
i++;



resultStr =str.substring(i, len);
}



return resultStr;
}



/********************************************************************
**
*函数功能:去字符串的尾空*
*输入参数:字符串*
*返回值:字符串/null如果输入字符串不正确*
*调用函数:*
**
********************************************************************/
function TrimRight(str)
{
varresultStr ="";
vari =0;



if (str+"" == "undefined" || str ==null)
return null;



str+= "";



if (str.length == 0)
resultStr ="";
else
{
i =str.length - 1;
while ((i >= 0)&& (str.charAt(i) == " "))
i--;



resultStr =str.substring(0, i + 1);
}



return resultStr;
}



/********************************************************************
**
*函数功能:判断输入的字符串是否为数字*
*输入参数:输入的对象*
*返回值:true-数字/false-非数字*
*调用函数:*
**
********************************************************************/
function isNumber(objName)
{
var strNumber = objName.value;
var intNumber;



if(Trim(strNumber) == "")
{
return true;
}



intNumber = parseInt(strNumber, 10);
if (isNaN(intNumber))
{
alert("请输入数字.");
objName.focus();
return false;
}
return true;
}



/********************************************************************
**
*函数功能:判断输入的字符串是否为数字*
*输入参数:输入的对象*
*返回值:true-数字/false-非数字*
*调用函数:*
**
********************************************************************/
function isFloat(objName)
{
var strFloat = objName.value;
var intFloat;



if(Trim(strFloat) == "")
{
return true;
}



intFloat = parseFloat(strFloat);
if (isNaN(intFloat))
{
alert("Please input a number.");
objName.focus();
return false;
}
return true;
}



}




/********************************************************************
**
*函数功能:判断输入的字符串是否为合法的时间*
*输入参数:输入的字符串*
*返回值:true-合法的时间/false-非法的时间*
*调用函数:*
**
********************************************************************/
function checkDate(strDate)
{
var strDateArray;
var strDay;
var strMonth;
var strYear;
var intday;
var intMonth;
var intYear;
var strSeparator = "-";
var err = 0;



strDateArray = strDate.split(strSeparator);



if (strDateArray.length != 3)
{
err = 1;
return false;
}
else
{
strYear = strDateArray[0];
strMonth = strDateArray[1];
strDay = strDateArray[2];
}



intday = parseInt(strDay, 10);
if (isNaN(intday))
{
err = 2;
return false;
}
intMonth = parseInt(strMonth, 10);
if (isNaN(intMonth))
{
err = 3;
return false;
}
intYear = parseInt(strYear, 10);
if(strYear.length != 4)
{
return false;
}
if (isNaN(intYear))
{
err = 4;
return false;
}




if (intMonth>12 || intMonth<1)
{
err = 5;
return false;
}



if ((intMonth == 1 || intMonth == 3 || intMonth == 5 || intMonth == 7 || intMonth == 8 || intMonth == 10 || intMonth == 12) && (intday > 31 || intday < 1))
{
err = 6;
return false;
}



if ((intMonth == 4 || intMonth == 6 || intMonth == 9 || intMonth == 11) && (intday > 30 || intday < 1))
{
err = 7;
return false;
}



if (intMonth == 2)
{
if (intday < 1)
{
err = 8;
return false;
}



if (LeapYear(intYear) == true)
{
if (intday > 29)
{
err = 9;
return false;
}
}
else
{
if (intday > 28)
{
err = 10;
return false;
}
}
}



return true;
}



/********************************************************************
**
*函数功能:判断是否为闰年*
*输入参数:输入的年*
*返回值:true-是/false-不是*
*调用函数:*
**
********************************************************************/
function LeapYear(intYear)
{
if (intYear % 100 == 0)
{
if (intYear % 400 == 0) { return true; }
}
else
{
if ((intYear % 4) == 0) { return true; }
}
return false;
}



/********************************************************************
*函数功能:*
********************************************************************/
function formDateCheck(year,month,day)
{
var strY = Trim(year);
var strM = Trim(month);
var strD = Trim(day);
var strDate = strY + "-" + strM + "-" + strD;
if((strY + strM + strD) != "")
{
if(!checkDate(strDate))
{
return false;
}
}
return true;
}



/********************************************************************
*函数功能:将form所有输入字段重置*
********************************************************************/
function setFormReset(objForm)
{
objForm.reset();
}
/********************************************************************
*函数功能:计算字符串的实际长度*
********************************************************************/



function strlen(str)
{
var len;
var i;
len = 0;
for (i=0;i<str.length;i++)
{
if (str.charCodeAt(i)>255) len+=2; else len++;
}
return len;
}
/********************************************************************
*函数功能:判断输入的字符串是不是中文*
********************************************************************/




function isCharsInBag (s, bag)
{
var i,c;
for (i = 0; i < s.length; i++)
{
c = s.charAt(i);//字符串s中的字符
if (bag.indexOf(c) > -1)
return c;
}
return "";
}



function ischinese(s)
{
var errorChar;
var badChar = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789><,[]{}?/+=|\'\":;~!#$%()`";
errorChar = isCharsInBag( s, badChar)
if (errorChar != "" )
{
//alert("请重新输入中文\n");
return false;
}



return true;
}



/********************************************************************
*函数功能:判断输入的字符串是不是英文*
********************************************************************/




function isCharsInBagEn (s, bag)
{
var i,c;
for (i = 0; i < s.length; i++)
{
c = s.charAt(i);//字符串s中的字符
if (bag.indexOf(c) <0)
return c;
}
return "";
}



function isenglish(s)
{
var errorChar;
var badChar = " ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
errorChar = isCharsInBagEn( s, badChar)
if (errorChar != "" )
{
//alert("请重新输入英文\n");
return false;
}



return true;
}
function isnum(s)
{
var errorChar;
var badChar = "0123456789";
errorChar = isCharsInBagEn( s, badChar)
if (errorChar != "" )
{
//alert("请重新输入英文\n");
return false;
}



return true;





自动显示TXT文本的内容
把如下代码加入<body>区域中
<script language=vbscript>
Function bytes2BSTR(vIn)
strReturn = ""
For i = 1 To LenB(vIn)
ThisCharCode = AscB(MidB(vIn,i,1))
If ThisCharCode < &H80 Then
strReturn = strReturn & Chr(ThisCharCode)
Else
NextCharCode = AscB(MidB(vIn,i+1,1))
strReturn = strReturn & Chr(CLng(ThisCharCode) * &H100 + CInt(NextCharCode))
i = i + 1
End If
Next
bytes2BSTR = strReturn
End Function
</script>
<script language="JavaScript">
var xmlUrl = new ActiveXObject('Microsoft.XMLHTTP');
xmlUrl.Open('GET','1.txt');
xmlUrl.Send();
setTimeout('alert(bytes2BSTR(xmlUrl.ResponseBody))',2000);
</script>








我也来帖几个:
//detect client browse version
function testNavigator(){
var message="系统检测到你的浏览器的版本比较低,建议你使用IE5.5以上的浏览器,否则有的功能可能不能正常使用.你可以到http://www.microsoft.com/china/免费获得IE的最新版本!";
var ua=navigator.userAgent;
var ie=false;
if(navigator.appName=="Microsoft Internet Explorer")
{
ie=true;
}
if(!ie){
alert(message);
return;
}
var IEversion=parseFloat(ua.substring(ua.indexOf("MSIE ")+5,ua.indexOf(";",ua.indexOf("MSIE "))));
if(IEversion< 5.5){
alert(message);
return;
}
}



//detect client browse version
function testNavigator(){
var message="系统检测到你的浏览器的版本比较低,建议你使用IE5.5以上的浏览器,否则有的功能可能不能正常使用.你可以到http://www.microsoft.com/china/免费获得IE的最新版本!";
var ua=navigator.userAgent;
var ie=false;
if(navigator.appName=="Microsoft Internet Explorer")
{
ie=true;
}
if(!ie){
alert(message);
return;
}
var IEversion=parseFloat(ua.substring(ua.indexOf("MSIE ")+5,ua.indexOf(";",ua.indexOf("MSIE "))));
if(IEversion< 5.5){
alert(message);
return;
}
}



//ensure current window is the top window
function checkTopWindow(){
if(window.top!=window && window.top!=null){
window.top.location=window.location;
}
}



//force close window
function closeWindow()
{
var ua=navigator.userAgent;
var ie=navigator.appName=="Microsoft Internet Explorer"?true:false;
if(ie)
{
var IEversion=parseFloat(ua.substring(ua.indexOf("MSIE ")+5,ua.indexOf(";",ua.indexOf("MSIE "))));
if(IEversion< 5.5)
{
var str = '<object id=noTipClose classid="clsid:ADB880A6-D8FF-11CF-9377-00AA003B7A11">'
str += '<param name="Command" value="Close"></object>';
document.body.insertAdjacentHTML("beforeEnd", str);
try
{
document.all.noTipClose.Click();
}
catch(e){}
}
else
{
window.opener =null;
window.close();
}
}
else
{
window.close()
}
}



//tirm string
function trim(s)
{
return s.replace( /^\s*/, "" ).replace( /\s*$/, "" );
}



//URI encode
function encode(content){
return encodeURI(content);
}



//URI decode
function decode(content){
return decodeURI(content);
}




这些都我的原创.
打开calendar选择，可以限制是否可选择当前日期后的日期.
//open a calendar window.
function openCalender(ctlValue){
var url="/twms/component/calendar.html";
var param="dialogHeight:200px;dialogWidth:400px;center:yes;status:no;help:no;scroll:yes;resizable:yes;";
var result=window.showModalDialog(url,ctlValue.value,param);
if(result!=null && result!="" && result!="undefined"){
ctlValue=result;
}
}



calendar.html
<html>
<head>
<title>选择日期:</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<link href="/twms/css/common.css" type="text/css" rel="stylesheet">
<script language="JavaScript">
var limit=true;



function runNian(The_Year)
{
if ((The_Year%400==0) || ((The_Year%4==0) && (The_Year%100!=0)))
return true;
else
return false;
}



function getWeekday(The_Year,The_Month)
{

var Allday=0;
if (The_Year>2000)
{

for (i=2000 ;i<The_Year; i++)
{
if (runNian(i))
Allday += 366;
else
Allday += 365;
}



for (i=2; i<=The_Month; i++)
{
switch (i)
{
case 2 :
if (runNian(The_Year))
Allday += 29;
else
Allday += 28;
break;
case 3 : Allday += 31; break;
case 4 : Allday += 30; break;
case 5 : Allday += 31; break;
case 6 : Allday += 30; break;
case 7 : Allday += 31; break;
case 8 : Allday += 31; break;
case 9 : Allday += 30; break;
case 10 : Allday += 31; break;
case 11 : Allday += 30; break;
case 12 : Allday += 31; break;

}
}
}

switch (The_Month)
{
case 1:return(Allday+6)%7;



case 2 :
if (runNian(The_Year))
return (Allday+1)%7;
else
return (Allday+2)%7;



case 3:return(Allday+6)%7;
case 4:return (Allday+7)%7;
case 5:return(Allday+6)%7;
case 6:return (Allday+7)%7;
case 7:return(Allday+6)%7;
case 8:return(Allday+6)%7;
case 9:return (Allday+7)%7;
case 10:return(Allday+6)%7;
case 11:return (Allday+7)%7;
case 12:return(Allday+6)%7;



}
}



function chooseDay(The_Year,The_Month,The_Day)
{
var Firstday;
Firstday = getWeekday(The_Year,The_Month);
showCalender(The_Year,The_Month,The_Day,Firstday);
}



function nextMonth(The_Year,The_Month)
{
if (The_Month==12)
chooseDay(The_Year+1,1,0);
else
chooseDay(The_Year,The_Month+1,0);
}



function prevMonth(The_Year,The_Month)
{
if (The_Month==1)
chooseDay(The_Year-1,12,0);
else
chooseDay(The_Year,The_Month-1,0);
}



function prevYear(The_Year,The_Month)
{
chooseDay(The_Year-1,The_Month,0);
}



function nextYear(The_Year,The_Month)
{
chooseDay(The_Year+1,The_Month,0);
}



function showCalender(The_Year,The_Month,The_Day,Firstday)
{
var Month_Day;
var ShowMonth;
var today= new Date();
//alert(today.getMonth());

switch (The_Month)
{
case 1 : ShowMonth = "一月"; Month_Day = 31; break;
case 2 :
ShowMonth = "二月";
if (runNian(The_Year))
Month_Day = 29;
else
Month_Day = 28;
break;
case 3 : ShowMonth = "三月"; Month_Day = 31; break;
case 4 : ShowMonth = "四月"; Month_Day = 30; break;
case 5 : ShowMonth = "五月"; Month_Day = 31; break;
case 6 : ShowMonth = "六月"; Month_Day = 30; break;
case 7 : ShowMonth = "七月"; Month_Day = 31; break;
case 8 : ShowMonth = "八月"; Month_Day = 31; break;
case 9 : ShowMonth = "九月"; Month_Day = 30; break;
case 10 : ShowMonth = "十月"; Month_Day = 31; break;
case 11 : ShowMonth = "十一月"; Month_Day = 30; break;
case 12 : ShowMonth = "十二月"; Month_Day = 31; break;
}

var tableTagBegin="<Table cellpadding=0 cellspacing=0 border=1 bordercolor=#999999 width=95% align=center valign=top>";
var blankNextTd="<td width=0>>></td>";
var blankPrevTd="<td width=0><<</td>";
var blankDayTd="<td align=center bgcolor=#CCCCCC> </td>";
var nextYearTd="<td width=0 onclick=nextYear("+The_Year+","+The_Month+") style='cursor:hand'>>></td>";
var prevYearTd="<td width=0 onclick=prevYear("+The_Year+","+The_Month+") style='cursor:hand'><<</td>";
var nextMonthTd="<td width=0 onclick=nextMonth("+The_Year+","+The_Month+") style='cursor:hand'>>></td>";
var prevMonthTd="<td width=0 onclick=prevMonth("+The_Year+","+The_Month+") style='cursor:hand'><<</td>";
var valueTdTagBegin="<td width=100 align=center colspan=5>";



var weekTextTr="<Tr align=center bgcolor=#999999>";
weekTextTr+="<td><strong><font color=#0000CC>日</font></strong>";
weekTextTr+="<td><strong><font color=#0000CC>一</font></strong>";
weekTextTr+="<td><strong><font color=#0000CC>二</font></strong>";
weekTextTr+="<td><strong><font color=#0000CC>三</font></strong>";
weekTextTr+="<td><strong><font color=#0000CC>四</font></strong>";
weekTextTr+="<td><strong><font color=#0000CC>五</font></strong>";
weekTextTr+="<td><strong><font color=#0000CC>六</font></strong>";
weekTextTr+="</Tr>";



var text=tableTagBegin;



text+="<Tr>"+prevYearTd+valueTdTagBegin+The_Year+"</td>";
if(limit && (The_Year>=today.getYear()) ){
text+=blankNextTd;
}
else{
text+=nextYearTd;
}
text+="</Tr>";



text+="<Tr>"+prevMonthTd+valueTdTagBegin+The_Month+"</td>";
if(limit && (The_Year>=today.getYear()) && (The_Month>=(today.getMonth()+1)) ){
text+=blankNextTd;
}
else{
text+=nextMonthTd;
}
text+="</Tr>"+weekTextTr;



text+="<Tr>";



for (var i=1; i<=Firstday; i++){
text+=blankDayTd;
}




for (var i=1; i<=Month_Day; i++)
{
var bgColor="";
if ( (The_Year==today.getYear()) && (The_Month==today.getMonth()+1) && (i==today.getDate()) )
{
bgColor = "#FFCCCC";
}
else
{
bgColor = "#CCCCCC";
}



if (The_Day==i)
{
bgColor = "#FFFFCC";
}



if(limit && (The_Year>=today.getYear()) && (The_Month>=(today.getMonth()+1)) && (i>today.getDate()))
{
text+="<td align=center bgcolor='#CCCCCC' >" + i + "</td>";
}
else
{
text+="<td align=center bgcolor=" + bgColor + " style='cursor:hand' onclick=getSelectedDay(" + The_Year + "," + The_Month + "," + i + ")>" + i + "</td>";
}



Firstday = (Firstday + 1)%7;
if ((Firstday==0) && (i!=Month_Day)) {
text += "</Tr><Tr>";
}
}



if (Firstday!=0)
{
for (var i=Firstday; i<7; i++)
{
text+=blankDayTd;
}



text+= "</Tr>";
}

text += "</Table>";
document.all.divContainer.innerHTML=text;
}



function getSelectedDay(The_Year,The_Month,The_Day){
window.returnValue=The_Year + "-" + format(The_Month) + "-" + format(The_Day);
//alert(window.returnValue);
window.close();
}



function format(i){
if(i<10){
return "0"+i;
}
else{
return i;
}
}



function init(){
var args=window.dialogArguments.split("-");
//alert(args);
var year=parseInt(args[0]);
var month=parseInt(args[1]);
var day=parseInt(args[2]);
var firstDay=getWeekday(year,month);
showCalender(year,month,day,firstDay);
}
</script>
</head>
<body style="text-align:center">
<div id="divContainer"/>
<script language=javascript>
init();
</script>
</body>
</html>





//parse the search string,then return a object.
//object info:
//--property:
//----result:a array contained a group of name/value item.the item is nested class.
//--method:
//----getNamedItem(name):find item by name.if not exists,return null;
//----appendItem(name,value):apppend an item into result tail;
//----removetItem(name):remove item which contained in result and named that name.
//----toString():override Object.toString();return a regular query string.
function parseQueryString(search){
var object=new Object();
object.getNamedItem=getNamedItem;
object.appendItem=appendItem;
object.removeItem=removeItem;
object.toString=toString;
object.result=new Array();



function parseItem(itemStr){
var arStr=itemStr.split("=");
var obj=new Object();
obj.name=arStr[0];
obj.value=arStr[1];
obj.toString=toString;
function toString(){
return obj.name+"="+obj.value;
}
return obj;
}



function appendItem(name,value){
var obj=parseItem(name+"="+value);
object.result[object.result.length]=obj;
}



function removeItem(name){
var j;
for(j=0;j<object.result.length;j++){
if(object.result[j].name==name){
object.result.replice(j,1);
}
}
}



function getNamedItem(name){
var j;
for(j=0;j<object.result.length;j++){
if(object.result[j].name==name){
return object.result[j];
}
}



return null;
}



function toString(){
var k;
var str="";
for(k=0;k<object.result.length;k++){
str+=object.result[k].toString()+"&";
}



return str.substring(0,str.length-1);
}




var items=search.split("&");
var i;
for(i=0;i<items.length;i++){
object.result[i]=parseItem(items[i]);
}



return object;
}





关闭窗体[无须修改][共1步]



====1、将以下代码加入HEML的<body></body>之间：



<script language="JavaScript">
function shutwin(){
window.close();
return;}
</script>
<a href="javascript:shutwin();">关闭本窗口</a>





检测系统信息



<script language="JavaScript" type="text/javascript">
<!--
var newline = "\r\r"
var now = new Date()
var millinow=now.getTime()/1000
var hours = now.getHours()
var minutes = now.getMinutes()
var seconds = now.getSeconds()
var yourLocation=""
now.setHours(now.getHours()+1)
var min=60*now.getUTCHours()+now.getUTCMinutes() + now.getUTCSeconds()/60;
var internetTime=(min/1.44)
internetTime="Internet Time: @"+Math.floor(internetTime)
var clock = "It's exactly "+hours+":"+minutes+":"+seconds+" hours"
var browser = "You are using " + navigator.appName +" "+navigator.appVersion
yourLocation="You are probably living in "+yourLocation
var winwidth= window.screen.width
var winheight= window.screen.height
var screenresolution= "Screen resolution: "+window.screen.width+" x "+window.screen.height
var lastdoc = "You came from: "+document.referrer
var expDays = 30;
var exp = new Date();
exp.setTime(exp.getTime() + (expDays*24*60*60*1000));
function Who(info){
var VisitorName = GetCookie('VisitorName')
if (VisitorName == null) {
VisitorName = "stranger";
SetCookie ('VisitorName', VisitorName, exp);
}
return VisitorName;
}
function When(info){
// When
var rightNow = new Date()
var WWHTime = 0;
WWHTime = GetCookie('WWhenH')
WWHTime = WWHTime * 1
var lastHereFormatting = new Date(WWHTime); // Date-i-fy that number
var intLastVisit = (lastHereFormatting.getYear() * 10000)+(lastHereFormatting.getMonth() * 100) +
lastHereFormatting.getDate()
var lastHereInDateFormat = "" + lastHereFormatting; // Gotta use substring functions
var dayOfWeek = lastHereInDateFormat.substring(0,3)
var dateMonth = lastHereInDateFormat.substring(4,11)
var timeOfDay = lastHereInDateFormat.substring(11,16)
var year = lastHereInDateFormat.substring(23,25)
var WWHText = dayOfWeek + ", " + dateMonth + " at " + timeOfDay // display
SetCookie ("WWhenH", rightNow.getTime(), exp)
return WWHText;
}
function Count(info){
var psj=0;
// How many times
var WWHCount = GetCookie('WWHCount')
if (WWHCount == null) {
WWHCount = 0;
}
else{
WWHCount++;
}
SetCookie ('WWHCount', WWHCount, exp);
return WWHCount;
}
function set(){
VisitorName = prompt("Who are you?");
SetCookie ('VisitorName', VisitorName, exp);
SetCookie ('WWHCount', 0, exp);
SetCookie ('WWhenH', 0, exp);
}
function getCookieVal (offset) {
var endstr = document.cookie.indexOf (";", offset);
if (endstr == -1)
endstr = document.cookie.length;
return unescape(document.cookie.substring(offset, endstr));
}
function GetCookie (name) {
var arg = name + "=";
var alen = arg.length;
var clen = document.cookie.length;
var i = 0;
while (i < clen) {
var j = i + alen;
if (document.cookie.substring(i, j) == arg)
return getCookieVal (j);
i = document.cookie.indexOf(" ", i) + 1;
if (i == 0) break;
}
return null;
}
function SetCookie (name, value) {
var argv = SetCookie.arguments;
var argc = SetCookie.arguments.length;
var expires = (argc > 2) ? argv[2] : null;
var path = (argc > 3) ? argv[3] : null;
var domain = (argc > 4) ? argv[4] : null;
var secure = (argc > 5) ? argv[5] : false;
document.cookie = name + "=" + escape (value) +
((expires == null) ? "" : ("; expires=" + expires.toGMTString())) +
((path == null) ? "" : ("; path=" + path)) +
((domain == null) ? "" : ("; domain=" + domain)) +
((secure == true) ? "; secure" : "");
}
function DeleteCookie (name) {
var exp = new Date();
exp.setTime (exp.getTime() - 1);
// This cookie is history
var cval = GetCookie (name);
document.cookie = name + "=" + cval + "; expires=" + exp.toGMTString();
}
var countvisits="You've been here " + Count() + " time(s). Last time was " + When() +"."
if (navigator.javaEnabled()) {
var javaenabled="Your browser is able to run java-applets";
}
else {
var javaenabled="Your browser is not able to run java-applets";
}
function showAlert() {
var later = new Date()
var millilater=later.getTime()/1000
var loadTime=(Math.floor((millilater-millinow)*100))/100
var loadTimeResult= "It took you "+loadTime+" seconds to load this page"
var babiesborn=Math.ceil(loadTime*4.18)
var babiesbornresult="While this page was loading "+babiesborn+" babies have been born"
if (babiesborn==1){babiesbornresult="While this page was loading "+babiesborn+" baby has been born"}
alert
(newline+newline+browser+newline+clock+newline+loadTimeResult+newline+internetTime+newline+screenresolution+newline+lastdoc+newline+countvisits+newline+javaenabled+newline+babiesbornresult+newline+newline)
}
// --></script>
<body onLoad="showAlert()">




密码保护:



将以下代码加入HEML的<body></body>之间