var Email = {
		_table :  {
			"@163.com":"mail.163.com",
			"@126.com":"www.126.com",
			"@yeah.net":"www.yeah.net",
			"@vip.163.com":"vip.163.com",
			"@188.com":"www.188.com",
			"@sina.net":"mail.sina.net",
			"@yahoo.com":"mail.cn.yahoo.com",
			"@21cn.com":"mail.21cn.com",
			"@sohu.com":"mail.sohu.com",
			"@china.com":"corpmail.china.com",
			"@hexun.com":"mail.hexun.com",
			"@tom.com":"mail.tom.com",
			"@vip.tom.com":"vip.tom.com",
			"@qq.com":"mail.qq.com",
			"@sougou.com":"mail.sogou.com",
			"@eyou.com":"www.eyou.com",
			"@263.net":"mail.263.net",
			"@google.com":"mail.google.com",
			"@vip.0451.com":"vip.0451.com",
			"@139.com":"www.139.com",
			"@hotmail.com":"www.hotmail.com"
		},
		toAddr : function (email) {
			if (email == undefined && typeof email == "undefined") {
				return;
			}
			var emailSuffix = email.substring(email.indexOf("@"));
			console.log("email "+email+"'s emailSuffix : " + emailSuffix);
			return Email._table[email.substring(email.indexOf("@"))];
		}
}