var BrowserDetector = {
	init: function () {
		this.browser = this.searchString(this.dataBrowser) || "An unknown browser";
		this.version = this.searchVersion(navigator.userAgent)
			|| this.searchVersion(navigator.appVersion)
			|| "an unknown version";
		this.OS = this.searchString(this.dataOS) || "an unknown OS";
	},
	searchString: function (data) {
		for (var i=0;i<data.length;i++)	{
			var dataString = data[i].string;
			var dataProp = data[i].prop;
			this.versionSearchString = data[i].versionSearch || data[i].identity;
			if (dataString) {
				if (dataString.indexOf(data[i].subString) != -1)
					return data[i].identity;
			}
			else if (dataProp)
				return data[i].identity;
		}
	},
	searchVersion: function (dataString) {
		var index = dataString.indexOf(this.versionSearchString);
		if (index == -1) return;
		return parseFloat(dataString.substring(index+this.versionSearchString.length+1));
	},
	dataBrowser: [
		{
			string: navigator.vendor,
			subString: "Apple",
			identity: "Safari"
		},
		{
			prop: window.opera,
			identity: "Opera"
		},
		{
			string: navigator.vendor,
			subString: "iCab",
			identity: "iCab"
		},
		{
			string: navigator.vendor,
			subString: "KDE",
			identity: "Konqueror"
		},
		{
			string: navigator.userAgent,
			subString: "Firefox",
			identity: "Firefox"
		},
		{	// for newer Netscapes (6+)
			string: navigator.userAgent,
			subString: "Netscape",
			identity: "Netscape"
		},
		{
			string: navigator.userAgent,
			subString: "MSIE",
			identity: "Explorer",
			versionSearch: "MSIE"
		},
		{
			string: navigator.userAgent,
			subString: "Gecko",
			identity: "Mozilla",
			versionSearch: "rv"
		},
		{ 	// for older Netscapes (4-)
			string: navigator.userAgent,
			subString: "Mozilla",
			identity: "Netscape",
			versionSearch: "Mozilla"
		}
	],
	dataOS : [
		{
			string: navigator.platform,
			subString: "Win",
			identity: "Windows"
		},
		{
			string: navigator.platform,
			subString: "Mac",
			identity: "Mac"
		},
		{
			string: navigator.platform,
			subString: "Linux",
			identity: "Linux"
		}
	]

};
BrowserDetector.init();

function existsInArray(arr, value) {
	for (var i=0; i<arr.length; i++) {
		if (arr[i]==value) {
			return true;
		}
	}
	return false;
}

function checkResolution() {
	var strCName = "friso_resolution_alert";
	var strCValue = readCookie(strCName);
	if (strCValue==null) {
		if (screen.width<1024) {
			alert("本網站以 IE 6 或以上版本為設計網頁之標準，並以 1024 x 768 之顯示設定來瀏覽最佳。");
			createCookie(strCName, "yes", 1);
		}
	}
}

function createCookie(name,value,days) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
		}
	else expires = "";
	document.cookie = name+"="+value+expires+";path=/;";
}

function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) 
		  return c.substring(nameEQ.length,c.length);
	}
	return null;
}

function isValidDate(y, m, d) {
	var date = new Date(y, m-1, d);
	return (date.getMonth() == (m-1));
}

function goToSection(i) {
	location.replace("../content/timeline_redirect.jsp?section=" + i);
}
// Function Name: trim
// Function Description: 去除字符串的首尾的空格
// Creation Date: 2004-7-13 15:30
// Last Modify By: N/A
// Last Modify Date: N/A
String.prototype.trim=function(){
return this.replace(/(^\s*)|(\s*$)/g, "");
}

// Function Name: ltrim
// Function Description: 去除字符串的左侧的空格
// Creation Date: 2004-7-13 9:58
// Last Modify By: N/A
// Last Modify Date: N/A
String.prototype.ltrim=function()
{
return this.replace(/(^\s*)/g, "");
}

// Function Name: rtrim
// Function Description: 去除字符串的右侧的空格
// Creation Date: 2004-7-13 15:31
// Last Modify By: N/A
// Last Modify Date: N/A
String.prototype.rtrim=function()
{
return this.replace(/(\s*$)/g, "");
}

// Function Name: len
// Function Description: 返回字符串的实际长度, 一个汉字算2个长度
// Creation Date: 2004-7-13 9:58
// Last Modify By: N/A
// Last Modify Date: N/A
String.prototype.len=function()
{
var str=this;
return str.replace(/[^\x00-\xff]/g, "**").length
}

// Function Name: isValidDate
// Function Description: 判断输入是否是有效的短日期格式 - "YYYY-MM-DD"
// Creation Date: 2004-7-13 9:58
// Last Modify By: N/A
// Last Modify Date: N/A
String.prototype.isValidDate=function()
{
var result=this.match(/^(\d{1,4})(-|\/)(\d{1,2})\2(\d{1,2})$/);
if(result==null) return false;
var d=new Date(result[1], result[3]-1, result[4]);
return (d.getFullYear()==result[1]&&d.getMonth()+1==result[3]&&d.getDate()==result[4]);
}

// Function Name: isValidTime
// Function Description: 判断输入是否是有效的时间格式 - "HH:MM:SS"
// Creation Date: 2004-7-13 9:58
// Last Modify By: N/A
// Last Modify Date: N/A
String.prototype.isValidTime=function()
{
var resule=this.match(/^(\d{1,2})(:)?(\d{1,2})\2(\d{1,2})$/);
if (result==null) return false;
if (result[1]>24 || result[3]>60 || result[4]>60) return false;
return true;
}

// Function Name: isValidEmail
// Function Description: 判断输入是否是有效的电子邮件
// Creation Date: 2004-7-13 9:59
// Last Modify By: N/A
// Last Modify Date: N/A
String.prototype.isValidEmail=function()
{
var result=this.match(/^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/);
if(result==null) return false;
return true;
}

// Function Name: isValidDatetime
// Function Description: 判断输入是否是有效的长日期格式 - "YYYY-MM-DD HH:MM:SS"
// Creation Date: 2004-7-13 9:59
// Last Modify By: N/A
// Last Modify Date: N/A
String.prototype.isValidDatetime=function()
{
var result=this.match(/^(\d{1,4})(-|\/)(\d{1,2})\2(\d{1,2}) (\d{1,2}):(\d{1,2}):(\d{1,2})$/);
if(result==null) return false;
var d= new Date(result[1], result[3]-1, result[4], result[5], result[6], result[7]);
return (d.getFullYear()==result[1]&&(d.getMonth()+1)==result[3]&&d.getDate()==result[4]&&d.getHours()==result[5]&&d.getMinutes()==result[6]&&d.getSeconds()==result[7]);
}

// Function Name: isValidInteger
// Function Description: 判断输入是否是一个整数
// Creation Date: 2004-7-13 10:01
// Last Modify By: N/A
// Last Modify Date: N/A
String.prototype.isValidInteger=function()
{
var result=this.match(/^(-|\+)?\d+$/);
if(result==null) return false;
return true;
}

// Function Name: isValidPositiveInteger
// Function Description: 判断输入是否是一个正整数
// Creation Date: 2004-7-13 10:01
// Last Modify By: N/A
// Last Modify Date: N/A
String.prototype.isValidPositiveInteger=function()
{
var result=this.match(/^\d+$/);
if(result==null) return false;
if(parseInt(this)>0) return true;
return false;
}

// Function Name: isValidNegativeInteger
// Function Description: 判断输入是否是一个负整数
// Creation Date: 2004-7-13 10:28
// Last Modify By: N/A
// Last Modify Date: N/A
String.prototype.isValidNegativeInteger=function()
{
var result=this.match(/^-\d+$/);
if(result==null) return false;
return true;
}

// Function Name: isValidNumber
// Function Description: 判断输入是否是一个数字
// Creation Date: 2004-7-13 10:01
// Last Modify By: N/A
// Last Modify Date: N/A
String.prototype.isValidNumber=function()
{
return !isNaN(this);
}

// Function Name: isValidLetters
// Function Description: 判断输入是否是一个由 A-Z / a-z 组成的字符串
// Creation Date: 2004-7-13 10:10
// Last Modify By: N/A
// Last Modify Date: N/A
String.prototype.isValidLetters=function()
{
var result=this.match(/^[a-zA-Z]+$/);
if(result==null) return false;
return true;
}

// Function Name: isValidDigits
// Function Description: 判断输入是否是一个由 0-9 组成的数字
// Creation Date: 2004-7-13 10:10
// Last Modify By: N/A
// Last Modify Date: N/A
String.prototype.isValidDigits=function()
{
var result=this.match(/^[0-9][0-9]+$/);
if(result==null) return false;
return true;
}

// Function Name: isValidAlphanumeric
// Function Description: 判断输入是否是一个由 0-9 / A-Z / a-z 组成的字符串
// Creation Date: 2004-7-13 10:14
// Last Modify By: N/A
// Last Modify Date: N/A
String.prototype.isValidAlphanumeric=function()
{
var result=this.match(/^[a-zA-Z0-9]+$/);
if(result==null) return false;
return true;
}

// Function Name: isValidString
// Function Description: 判断输入是否是一个由 0-9 / A-Z / a-z / . / _ 组成的字符串
// Creation Date: 2004-7-13 10:20
// Last Modify By: N/A
// Last Modify Date: N/A
String.prototype.isValidString=function()
{
var result=this.match(/^[a-zA-Z0-9\s.\-_]+$/);
if(result==null) return false;
return true;
}

// Function Name: isValidPostalcode
// Function Description: 判断输入是否是一个有效的邮政编码
// Creation Date: 2004-7-13 10:22
// Last Modify By: N/A
// Last Modify Date: N/A
String.prototype.isValidPostalcode=function()
{
var result=this.match(/(^[0-9]{6}$)/);
if(result==null) return false;
return true;
}

// Function Name: isValidPhoneNo
// Function Description: 判断输入是否是一个有效的电话号码
// Creation Date: 2004-7-13 10:22
// Last Modify By: N/A
// Last Modify Date: N/A
String.prototype.isValidPhoneNo=function()
{
var result=this.match(/(^[0-9]{3,4}\-[0-9]{3,8}$)|(^[0-9]{3,8}$)|(^\([0-9]{3,4}\)[0-9]{3,8}$)/);
if(result==null) return false;
return true;
}

// Function Name: isValidMobileNo
// Function Description: 判断输入是否是一个有效的手机号码
// Creation Date: 2004-7-13 10:23
// Last Modify By: N/A
// Last Modify Date: N/A
String.prototype.isValidMobileNo=function()
{
var result=this.match(/(^0{0,1}13[0-9]{9}$)/);
if(result==null) return false;
return true;
}