/*-------------------------------------------------------------------------------------------------------------------
 Script Name: functions.js
 Author: Tony Wei (魏志國)  tonywei123_at_gmail.com
 Description: JavaScript 共用函式庫
 Revision History:
   1.0: original version 2010/4/15
-------------------------------------------------------------------------------------------------------------------*/


// 預先檢查驗證碼
function check_code()
{
	var url = "index.aspx?fn=check_code&rand=" + Math.random() + "&code=" + document.getElementById( "code" ).value;
	var objTag = ccioo_ajax_getXmlData( url ).getElementsByTagName("item");
	var sReturn = objTag[0].firstChild.nodeValue;
	if ( parseInt( sReturn ) > 0 ) {
		alert( "請輸入正確的安全碼!" );
		return false;
	}
	return true;
}


// 聯絡我們
function check_contact( fm )
{
	if ( ! check_required( '姓名', '姓名' ) ) return false;
	if ( document.getElementById( "聯絡電話" ).value != "" ) {
		if ( ! check_numeric2( '聯絡電話', '聯絡電話' )     ) return false;
	}
	if ( ! check_required( '電子信箱', '電子信箱' ) ) return false;
	if ( ! check_email( '電子信箱' ) ) return false;
	if ( ! check_required( '意見內容', '意見內容' ) ) return false;
	if ( ! check_required( 'code', '安全碼' ) ) return false;
	if ( ! check_numeric2( 'code', '安全碼' ) ) return false;
	if ( ! check_code() ) return false;
	fm.submit();
}



/*-------------------------------------------------------------------------------------------------------------------
 Function: check_required()
 Description: 檢查表單欄位是否有填寫
 Input: 物件ID, 訊息
 Output: 是否驗證通過 true or false
 Example: 
	check_required( "username", "姓名" );
Revision History:
   1.0: original version 2007/1/5
-------------------------------------------------------------------------------------------------------------------*/
function check_required( objID, sMessage )
{
	var objField = document.getElementById( objID );
	if ( objField.value.replace( /\s/g, "" ).length == 0 ) {
		alert( "請填寫" + sMessage + "!" );
		objField.focus();
		return false;
	}
	return true;
}

 /*-------------------------------------------------------------------------------------------------------------------
 Function: check_numeric()
 Description: 檢查表單欄位是否是數字
 Input: 物件ID, 訊息
 Output: 是否驗證通過 true or false
 Example: 
	check_numeric( "amount", "數量" );
Revision History:
   1.0: original version 2007/1/8
-------------------------------------------------------------------------------------------------------------------*/
function check_numeric( objID, sMessage )
{
	var objField = document.getElementById( objID );
	if ( isNaN( parseInt( objField.value ) ) || parseInt( objField.value ) != objField.value ) {
		alert( sMessage + "必須是數字!" );
		objField.select();
		objField.focus();
		return false;
	}
	return true;
}

 /*-------------------------------------------------------------------------------------------------------------------
 Function: check_numeric2()
 Description: 檢查表單欄位是否是數字
 Input: 物件ID, 訊息
 Output: 是否驗證通過 true or false
 Example: 
	check_numeric2( 'mobile', '手機或聯絡電話' );
Revision History:
   1.0: original version 2007/1/8
-------------------------------------------------------------------------------------------------------------------*/
function check_numeric2( objID, sMessage )
{
	var objField = document.getElementById( objID );
	var filter= /^([0-9\-\(\)#]+)$/i;
	if ( ! filter.test( objField.value ) ) {
		alert( sMessage + "必須是數字!" );
		objField.select();
		objField.focus();
		return false;
	}
	return true;
}

 /*-------------------------------------------------------------------------------------------------------------------
 Function: check_email()
 Description: 檢查表單欄位是否是合法 Email 帳號
 Input: 物件ID, 訊息
 Output: 是否驗證通過 true or false
 Example: 
	check_email( "email" );
Revision History:
   1.0: original version 2007/1/8
-------------------------------------------------------------------------------------------------------------------*/
function check_email( objID, sMessage )
{
	var objField = document.getElementById( objID );
	var filter= /^([\w-]+(?:\.\w+)*)@((?:\w+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i;
	if ( ! filter.test( objField.value ) ) {
		alert( "請填寫正確的Email信箱!" );
		objField.select();
		objField.focus();
		return false;
	}
	return true;
}

/*-------------------------------------------------------------------------------------------------------------------
 Function: jump_get()
 Description: 換頁, 使用 GET
 Input: 新頁碼
 Output: N/A
 Example: 
	jump_get(2);
Revision History:
   1.0: original version 2007/1/10
   2.0: fn 參數版 2007/6/23
-------------------------------------------------------------------------------------------------------------------*/
function jump_get( p, sortNumber ) {
	var qs = new Querystring();
	var tail = "";
	location.href = "index.aspx?fn=" + qs.get("fn") + "&no=" + qs.get("no") + "&page=" + p + tail + "#anchor";
}