function validateInteger(value) {
	var exp = new RegExp("^-?\\d+$");
	return exp.test(value);
}

function validateDate(value, datePattern) {
	var MONTH = "mm";
	var DAY = "dd";
	var YEAR = "yyyy";
	var orderMonth = datePattern.indexOf(MONTH);
    var orderDay = datePattern.indexOf(DAY);
    var orderYear = datePattern.indexOf(YEAR);
	var bValid = true;
	var dateRegexp = null;

	if ((orderDay < orderYear && orderDay > orderMonth)) {
		var iDelim1 = orderMonth + MONTH.length;
        var iDelim2 = orderDay + DAY.length;
        var delim1 = datePattern.substring(iDelim1, iDelim1 + 1);
        var delim2 = datePattern.substring(iDelim2, iDelim2 + 1);
        if (iDelim1 == orderDay && iDelim2 == orderYear) {
			dateRegexp = new RegExp("^(\\d{2})(\\d{2})(\\d{4})$");
        } else if (iDelim1 == orderDay) {
			dateRegexp = new RegExp("^(\\d{2})(\\d{2})[" + delim2 + "](\\d{4})$");
        } else if (iDelim2 == orderYear) {
			dateRegexp = new RegExp("^(\\d{2})[" + delim1 + "](\\d{2})(\\d{4})$");
        } else {
			dateRegexp = new RegExp("^(\\d{2})[" + delim1 + "](\\d{2})[" + delim2 + "](\\d{4})$");
        }

        var matched = dateRegexp.exec(value);
        if(matched != null) {
			if (!isValidDate(matched[2], matched[1], matched[3])) {
                bValid =  false;
			}
        } else {
            bValid =  false;
        }
    } else if ((orderMonth < orderYear && orderMonth > orderDay)) {
		var iDelim1 = orderDay + DAY.length;
        var iDelim2 = orderMonth + MONTH.length;
        var delim1 = datePattern.substring(iDelim1, iDelim1 + 1);
        var delim2 = datePattern.substring(iDelim2, iDelim2 + 1);
        if (iDelim1 == orderMonth && iDelim2 == orderYear) {
			dateRegexp = new RegExp("^(\\d{2})(\\d{2})(\\d{4})$");
        } else if (iDelim1 == orderMonth) {
			dateRegexp = new RegExp("^(\\d{2})(\\d{2})[" + delim2 + "](\\d{4})$");
        } else if (iDelim2 == orderYear) {
			dateRegexp = new RegExp("^(\\d{2})[" + delim1 + "](\\d{2})(\\d{4})$");
        } else {
			dateRegexp = new RegExp("^(\\d{2})[" + delim1 + "](\\d{2})[" + delim2 + "](\\d{4})$");
        }
        var matched = dateRegexp.exec(value);
		if(matched != null) {
			if (!isValidDate(matched[1], matched[2], matched[3])) {
				bValid = false;
            }
        } else {
			bValid = false;
        }
    } else if ((orderMonth > orderYear && orderMonth < orderDay)) {
		var iDelim1 = orderYear + YEAR.length;
        var iDelim2 = orderMonth + MONTH.length;
        var delim1 = datePattern.substring(iDelim1, iDelim1 + 1);

        var delim2 = datePattern.substring(iDelim2, iDelim2 + 1);
        if (iDelim1 == orderMonth && iDelim2 == orderDay) {
			dateRegexp = new RegExp("^(\\d{4})(\\d{2})(\\d{2})$");
        } else if (iDelim1 == orderMonth) {
			dateRegexp = new RegExp("^(\\d{4})(\\d{2})[" + delim2 + "](\\d{2})$");
        } else if (iDelim2 == orderDay) {
			dateRegexp = new RegExp("^(\\d{4})[" + delim1 + "](\\d{2})(\\d{2})$");
        } else {
			dateRegexp = new RegExp("^(\\d{4})[" + delim1 + "](\\d{2})[" + delim2 + "](\\d{2})$");
        }
		var matched = dateRegexp.exec(value);
        if(matched != null) {
			if (!isValidDate(matched[3], matched[2], matched[1])) {
                bValid =  false;
            }
        } else {
            bValid =  false;
        }
    } else {
        bValid =  false;
    }
	return bValid;
}

function isValidDate(day, month, year) {
	if (month < 1 || month > 12) return false;
	if (day < 1 || day > 31) return false;
	if ((month == 4 || month == 6 || month == 9 || month == 11) &&(day == 31))
		return false;

	if (month == 2) {
		var leap = (year % 4 == 0 && (year % 100 != 0 || year % 400 == 0));
		if (day>29 || (day == 29 && !leap)) return false;
    }

	return true;
}

function validateEmail(emailStr) {
   if (emailStr.length == 0) {
       return true;
   }
   var emailPat=/^(.+)@(.+)$/;
   var specialChars="\\(\\)<>@,;:\\\\\\\"\\.\\[\\]";
   var validChars="\[^\\s" + specialChars + "\]";
   var quotedUser="(\"[^\"]*\")";
   var ipDomainPat=/^(\d{1,3})[.](\d{1,3})[.](\d{1,3})[.](\d{1,3})$/;
   var atom=validChars + '+';
   var word="(" + atom + "|" + quotedUser + ")";
   var userPat=new RegExp("^" + word + "(\\." + word + ")*$");
   var domainPat=new RegExp("^" + atom + "(\\." + atom + ")*$");
   var matchArray=emailStr.match(emailPat);
   if (matchArray == null) {
       return false;
   }
   var user=matchArray[1];
   var domain=matchArray[2];
   if (user.match(userPat) == null) {
       return false;
   }
   var IPArray = domain.match(ipDomainPat);
   if (IPArray != null) {
       for (var i = 1; i <= 4; i++) {
          if (IPArray[i] > 255) {
             return false;
          }
       }
       return true;
   }
   var domainArray=domain.match(domainPat);
   if (domainArray == null) {
       return false;
   }
   var atomPat=new RegExp(atom,"g");
   var domArr=domain.match(atomPat);
   var len=domArr.length;
   if ((domArr[domArr.length-1].length < 2) ||
       (domArr[domArr.length-1].length > 3)) {
       return false;
   }
   if (len < 2) {
       return false;
   }
   return true;
}

function validateIntegers(value, seperator) {
	var array = value.split(seperator);
	if (!array.length) {
		return validateInteger(value);
	}
	else {
		for(var i=0; i<array.length; i++) {
			if (!validateInteger(array[i])) {
				return false;
			}
		}
	}

	return true;
}

function validateEmails(emailadrs, seperator) {
	var addressArray = emailadrs.split(seperator);
	if (!addressArray.length) {
		return validateEmail(emailadrs);
	}
	else {
		for(var i=0; i<addressArray.length; i++) {
			if (!validateEmail(addressArray[i])) {
				return false;
			}
		}
	}

	return true;
}
function validateFloat(num)
{
 	var i,j,strTemp;
 	strTemp="0123456789.";
	if(num.lastIndexOf('.')!=num.indexOf('.'))
		return false;
	if(num.charAt(num.length)==".")
	  	return false;
	if ( num.length== 0)
	 	 return false;
	for (i=0;i<num.length;i++)
	 {
		j=strTemp.indexOf(num.charAt(i)); 
		if (j==-1)
	 	{
			return false;
	 	}
	 }
 	return true;
}

function validateIntegerNotPoint(num)
{
 	var i,j,strTemp;
 	strTemp="0123456789";
	if ( num.length== 0)
	 	 return false;
	for (i=0;i<num.length;i++)
	 {
		j=strTemp.indexOf(num.charAt(i)); 
		if (j==-1)
	 	{
			return false;
	 	}
	 }
 	return true;
}