String.prototype.trim = function(){ return this.replace(/^\s+|\s+$/g,"")}
String.prototype.ltrim = function(){ return this.replace(/^\s+/g,"")}
String.prototype.rtrim = function(){ return this.replace(/\s+$/g,"")}
String.prototype.removenull = function()
{
        return this.replace(/[\x00]/g, "");
}

function $(id) {
	return document.getElementById(id);
}

//是否是数字
function isDigit(s) 
{ 
var patrn=/^[0-9]{1,20}$/; 
if (!patrn.exec(s)) return false 
return true 
} 


//校验登录名：只能输入5-20个以字母开头、可带数字、“_”、“.”的字串 
function isRegisterUserName(s) 
{ 
var patrn=/^[a-zA-Z_]{1}([a-zA-Z0-9]|[._]){4,19}$/; 
if (!patrn.exec(s)) return false 
return true 
} 

//校验用户姓名：只能输入1-30个以字母开头的字串 
function isTrueName(s) 
{ 
var patrn=/^[a-zA-Z]{1,30}$/; 
if (!patrn.exec(s)) return false 
return true 
} 

//校验密码：只能输入6-16个字符
function isPasswd(s) 
{ 
    var patrn=/^.{6,16}$/; 
    if (!patrn.exec(s)) return false 
    return true 
} 

//校验普通电话、传真号码：可以“+”开头，除数字外，可含有“-” 
function isTel(s) 
{ 
//var patrn=/^[+]{0,1}(\d){1,3}[ ]?([-]?(\d){1,12})+$/; 
var patrn=/^[+]{0,1}(\d){1,3}[ ]?([-]?((\d)|[ ]){1,12})+$/; 
if (!patrn.exec(s)) return false 
return true 
} 

//校验手机号码：必须以数字开头，除数字外，可含有“-” 
function isMobil(s) 
{ 
var patrn=/^[+]{0,1}(\d){1,3}[ ]?([-]?((\d)|[ ]){1,12})+$/; 
if (!patrn.exec(s)) return false 
return true 
} 

//校验邮政编码 
function isPostalCode(s) 
{ 
//var patrn=/^[a-zA-Z0-9]{3,12}$/; 
var patrn=/^[0-9 ]{3,12}$/; 
if (!patrn.exec(s)) return false 
return true 
} 

//校验搜索关键字 
function isSearch(s) 
{ 
var patrn=/^[^`~!@#$%^&*()+=|\\\][\]\{\}:;'\,.<>/?]{1}[^`~!@$%^&()+=|\\\][\]\{\}:;'\,.<>?]{0,19}$/; 
if (!patrn.exec(s)) return false 
return true 
} 

function isIP(s) //by zergling 
{ 
var patrn=/^[0-9.]{1,20}$/; 
if (!patrn.exec(s)) return false 
return true 
} 

function dateVerify(date)
{ 
    var reg = /^(\d{4})(-)(\d{2})\2(\d{2})$/; 
    var r = date.match(reg); 
    if(r==null) return false; 
    var d= new Date(r[1], r[3]-1,r[4]); 
    var newStr=d.getFullYear()+r[2]+(d.getMonth()+1)+r[2]+d.getDate(); 
    date=r[1]+r[2]+((r[3]-1)+1)+r[2]+((r[4]-1)+1); 
    return newStr==date; 
}



 
 
/*********************************************************************************
* FUNCTION: isBetween
* PARAMETERS: val AS any value
* lo AS Lower limit to check
* hi AS Higher limit to check
* CALLS: NOTHING
* RETURNS: TRUE if val is between lo and hi both inclusive, otherwise false.
**********************************************************************************/
function isBetween (val, lo, hi) {
if ((val < lo) || (val > hi)) { return(false); }
else { return(true); }
}

/*********************************************************************************
* FUNCTION: isDate checks a valid date
* PARAMETERS: theStr AS String
* CALLS: isBetween, isInt
* RETURNS: TRUE if theStr is a valid date otherwise false.
**********************************************************************************/
function isDate (theStr) {
var the1st = theStr.indexOf('-');
var the2nd = theStr.lastIndexOf('-');

if (the1st == the2nd) { return(false); }
else {
var y = theStr.substring(0,the1st);
var m = theStr.substring(the1st+1,the2nd);
var d = theStr.substring(the2nd+1,theStr.length);
var maxDays = 31;

if (isInt(m)==false || isInt(d)==false || isInt(y)==false) {
return(false); }
else if (y.length < 4) { return(false); }
else if (!isBetween (m, 1, 12)) { return(false); }
else if (m==4 || m==6 || m==9 || m==11) maxDays = 30;
else if (m==2) {
if (y % 4 > 0) maxDays = 28;
else if (y % 100 == 0 && y % 400 > 0) maxDays = 28;
else maxDays = 29;
}
if (isBetween(d, 1, maxDays) == false) { return(false); }
else { return(true); }
}
}
/*********************************************************************************
* FUNCTION: isEuDate checks a valid date in British format
* PARAMETERS: theStr AS String
* CALLS: isBetween, isInt
* RETURNS: TRUE if theStr is a valid date otherwise false.
**********************************************************************************/
function isEuDate (theStr) {
if (isBetween(theStr.length, 8, 10) == false) { return(false); }
else {
var the1st = theStr.indexOf('/');
var the2nd = theStr.lastIndexOf('/');

if (the1st == the2nd) { return(false); }
else {
var m = theStr.substring(the1st+1,the2nd);
var d = theStr.substring(0,the1st);
var y = theStr.substring(the2nd+1,theStr.length);
var maxDays = 31;

if (isInt(m)==false || isInt(d)==false || isInt(y)==false) {
return(false); }
else if (y.length < 4) { return(false); }
else if (isBetween (m, 1, 12) == false) { return(false); }
else if (m==4 || m==6 || m==9 || m==11) maxDays = 30;
else if (m==2) {
if (y % 4 > 0) maxDays = 28;
else if (y % 100 == 0 && y % 400 > 0) maxDays = 28;
else maxDays = 29;
}

if (isBetween(d, 1, maxDays) == false) { return(false); }
else { return(true); }
}
}

}
/********************************************************************************
* FUNCTION: Compare Date! Which is the latest!
* PARAMETERS: lessDate,moreDate AS String
* CALLS: isDate,isBetween
* RETURNS: TRUE if lessDate<moreDate
*********************************************************************************/
function isComdate (lessDate , moreDate)
{
    if (!isDate(lessDate)) { return(false);}
    if (!isDate(moreDate)) { return(false);}
    var less1st = lessDate.indexOf('-');
    var less2nd = lessDate.lastIndexOf('-');
    var more1st = moreDate.indexOf('-');
    var more2nd = moreDate.lastIndexOf('-');
    var lessy = lessDate.substring(0,less1st);
    var lessm = lessDate.substring(less1st+1,less2nd);
    var lessd = lessDate.substring(less2nd+1,lessDate.length);
    var morey = moreDate.substring(0,more1st);
    var morem = moreDate.substring(more1st+1,more2nd);
    var mored = moreDate.substring(more2nd+1,moreDate.length);
    var Date1 = new Date(lessy,lessm,lessd); 
    var Date2 = new Date(morey,morem,mored); 
    if (Date1>Date2) { return(false);}
    return(true); 

}

/*********************************************************************************
* FUNCTION isEmpty checks if the parameter is empty or null
* PARAMETER str AS String
**********************************************************************************/
function isEmpty (str) {
if ((str==null)||(str.length==0)) return true;
else return(false);
}

/*********************************************************************************
* FUNCTION: isInt
* PARAMETER: theStr AS String 
* RETURNS: TRUE if the passed parameter is an integer, otherwise FALSE
* CALLS: isDigit
**********************************************************************************/
function isInt (theStr) {
var flag = true;

if (isEmpty(theStr)) { flag=false; }
else
{ for (var i=0; i<theStr.length; i++) {
if (isDigit(theStr.substring(i,i+1)) == false) {
flag = false; break;
}
}
}
return(flag);
}

/*********************************************************************************
* FUNCTION: isReal
* PARAMETER: heStr AS String 
decLen AS Integer (how many digits after period)
* RETURNS: TRUE if theStr is a float, otherwise FALSE
* CALLS: isInt
**********************************************************************************/
function isReal (theStr, decLen) {
var dot1st = theStr.indexOf('.');
var dot2nd = theStr.lastIndexOf('.');
var OK = true;

if (isEmpty(theStr)) return false;

if (dot1st == -1) {
if (!isInt(theStr)) return(false);
else return(true);
}

else if (dot1st != dot2nd) return (false);
else if (dot1st==0) return (false);
else {
var intPart = theStr.substring(0, dot1st);
var decPart = theStr.substring(dot2nd+1);

if (decPart.length > decLen) return(false);
else if (!isInt(intPart) || !isInt(decPart)) return (false);
else if (isEmpty(decPart)) return (false);
else return(true);
}
}

/*********************************************************************************
* FUNCTION: isEmail
* PARAMETER: String (Email Address)
* RETURNS: TRUE if the String is a valid Email address
* FALSE if the passed string is not a valid Email Address
* EMAIL FORMAT: AnyName@EmailServer e.g; webmaster@hotmail.com
* @ sign can appear only once in the email address.
*********************************************************************************/
function isEmail(theStr)
{
    var atIndex = theStr.indexOf('@');
    var dotIndex = theStr.indexOf('.', atIndex);
    var flag = true;
    theSub = theStr.substring(0, dotIndex+1)

    if ((atIndex < 1)||(atIndex != theStr.lastIndexOf('@'))||(dotIndex < atIndex + 2)||(theStr.length <= theSub.length)) 
    { return(false); }
    else 
    { return(true); }
}
/*********************************************************************************
* FUNCTION: newWindow
* PARAMETERS: doc -> Document to open in the new window
hite -> Height of the new window
wide -> Width of the new window
bars -> 1-Scroll bars = YES 0-Scroll Bars = NO
resize -> 1-Resizable = YES 0-Resizable = NO
* CALLS: NONE
* RETURNS: New window instance
**********************************************************************************/
function newWindow (doc, hite, wide, bars, resize) {
var winNew="_blank";
var opt="toolbar=0,location=0,directories=0,status=0,menubar=0,";
opt+=("scrollbars="+bars+",");
opt+=("resizable="+resize+",");
opt+=("width="+wide+",");
opt+=("height="+hite);
winHandle=window.open(doc,winNew,opt);
return;
}
/*********************************************************************************
* FUNCTION: DecimalFormat
* PARAMETERS: paramValue -> Field value
* CALLS: NONE
* RETURNS: Formated string
**********************************************************************************/
function DecimalFormat (paramValue) {
var intPart = parseInt(paramValue);
var decPart =parseFloat(paramValue) - intPart;

str = "";
if ((decPart == 0) || (decPart == null)) str += (intPart + ".00");
else str += (intPart + decPart);

return (str);
}

//-------------------------------------------------------------------
/**
 * 日期相关 Date
 */
/** 检测输入日期是否合法 kerne */
function checkDate(inputyear,inputmonth,inputday){
    
	var nowdate = new Date();
	var result;
	var varleap_year;
	result = true;
	
    //alert('### yy='+inputyear+'--mm='+inputmonth+'--dd='+inputday);
	if ((inputyear<1850) || (inputyear>2500) || (!isDigit(inputyear))) result=false;
	if ((inputmonth<1) || (inputmonth>12) || (!isDigit(inputmonth))) result=false;
	if ((inputday<1) || (inputmonth>31) || (!isDigit(inputmonth))) result=false;
	
	if ((((parseInt(inputyear)%4) == 0) && ((parseInt(inputyear)%100) != 0)) || ((parseInt(inputyear)%400) == 0)) {
		if ((parseInt(inputmonth) == 2) && (parseInt(inputday) > 29)) result=false;
		switch(parseInt(inputmonth)){
			case 4:
				if (parseInt(inputday) > 30) {
					result = false;
					break;
				}
			case 6:
				if (parseInt(inputday)>30) {
					result=false;
					break;
				}
			case 9:
				if (parseInt(inputday)>30) {
					result=false;
					break;
				}
			case 11:
				if (parseInt(inputday)>30) {
					result=false;
					break;
				}
		}
	} else {
		switch(parseInt(inputmonth)) {
			case 2:
				if (parseInt(inputday)>28) {
					result=false;
					break;
				}
			case 4:
				if (parseInt(inputday)>30) {
					result=false;
					break;
				}
			case 6:
				if (parseInt(inputday)>30) {
					result=false;
					break;
				}
			case 9:
				if (parseInt(inputday)>30) {
					result=false;
					break;
				}
			case 11:
			if (parseInt(inputday)>30) {
				result=false;
				break;
			}
		}
	}
    //alert('result--'+result);
    
	return result;
}

//输出数字式下拉菜单项 
function writeOption(varFrom,varTo)
{
	for(var i=varFrom;i<=varTo;i++)
	{
		document.write("<option VALUE="+i+">"+i+"</option>");
	}
}


//替换所有空格
function replacetag(v)
{
 var reg =    /\s/g;     
 return v.replace(reg,    ""); 
}


        rnd.today=new Date(); 
        rnd.seed=rnd.today.getTime(); 

        function rnd() 
        { 
            rnd.seed = (rnd.seed*9301+49297) % 233280; 
            return rnd.seed/(233280.0); 
        }; 

        function rand(number) 
        { 
　　　　    return Math.ceil(rnd()*number); 
        }; 

        function ChangeCodeImg()
        {
            a = document.getElementById("comimg");
            if(a!=null)
            {
                a.src = "Manager/inc/Codeimg.aspx?"+rand(10000000);
            }
        }