/*-------------------------------------------------------------------------------------------------------------------
 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 2009/9/10
-------------------------------------------------------------------------------------------------------------------*/


// 預先檢查驗證碼
function check_code()
{
	var url = "home.php?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( "請輸入正確的驗證碼!" );
		return false;
	}
	return true;
}

// 聯絡我們
function check_contact( fm )
{
	if ( ! check_required( '姓名', '姓名' ) ) return false;
	if ( ! check_required( 'Email', 'Email' ) ) return false;
	if ( ! check_email( 'Email' ) ) return false;
	if ( ! check_required( '留言主題', '留言主題' )     ) return false;
	if ( ! check_required( '留言內容', '留言內容' )     ) 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;
	return true;
}


/*-------------------------------------------------------------------------------------------------------------------
 Function: bookmark()
 Description: 加入我的最愛
 Input: 網址，網站名稱
 Output: 是否驗證通過 true or false
 Example: 
	bookmark( 'http://www.hinet.net/', 'Hinet' );
Revision History:
   1.0: original version 2008/4/17
-------------------------------------------------------------------------------------------------------------------*/
function bookmark( address, sitename ) {
	if ( window.sidebar ) {
		window.sidebar.addPanel( sitename, address,"" );
	} else if( document.all ) {
		window.external.AddFavorite( address, sitename );
	} else if( window.opera && window.print ) {
		return true;
	}
}

/*-------------------------------------------------------------------------------------------------------------------
 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_required2( objID, sMessage )
{
	var objField = document.getElementById( objID );
	if ( objField.value.replace( /\s/g, "" ).length == 0 ) {
		alert( "Please Input " + 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_date()
 Description: 檢查日期格式是否正確
 Input: 年, 月, 日
 Output: 是否驗證通過 true or false
 Example: 
	check_date( 2008, 1, 29 );
Revision History:
   1.0: original version 2008/3/7
-------------------------------------------------------------------------------------------------------------------*/
function check_date( yyyy, mm, dd )
{
	mm = parseInt( mm ) - 1;
	var day = ( new Date( yyyy, mm, dd ) ).getDate();
	if ( day != dd ) {
		if ( mm == 1 && dd == 29 ) {
			alert( yyyy + " 年不是閏年，2 月沒有 29 天喔!" );
		} else {
			alert( ( mm + 1 ) + " 月沒有 " + dd + " 天喔!" );
		}
		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})?)$/i;
	if ( ! filter.test( objField.value ) ) {
		alert( "請填寫正確的Email信箱!" );
		objField.select();
		objField.focus();
		return false;
	}
	return true;
}
function check_email2( objID, sMessage )
{
	var objField = document.getElementById( objID );
	var filter= /^([\w-]+(?:\.\w+)*)@((?:\w+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i;
	if ( ! filter.test( objField.value ) ) {
		alert( "Please input the correct E-mail." );
		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 2008/5/30
   3.0: rewrite 版 2009/5/16
-------------------------------------------------------------------------------------------------------------------*/
function jump_get( p ) {
	var qs = new Querystring();
	var tail = "";
	var fn = "";
	if ( qs.get("fn") != null ) {
		fn += "fn=" + qs.get("fn");
	}
	if ( qs.get("keyword") != null ) {
		tail += "&keyword=" + qs.get("keyword");
	}
	if ( qs.get("cno") != null ) {
		tail += "&cno=" + qs.get("cno");
	}
	if ( qs.get("y") != null ) {
		tail += "&y=" + qs.get("y");
	}
	if ( qs.get("m") != null ) {
		tail += "&m=" + qs.get("m");
	}
	if ( qs.get("no") != null ) {
		tail += "&no=" + qs.get("no");
	}
	if ( qs.get("k") != null ) {
		tail += "&k=" + qs.get("k");
	}
	if ( document.getElementById( "k" ) != null && document.getElementById( "k" ).value != "{k}" ) {
		tail += "&k=" + encodeURI( document.getElementById( "k" ).value );
	}
	if ( document.getElementById( "city" ) != null && document.getElementById( "city" ).value != "{city}" ) {
		tail += "&city=" + encodeURI( document.getElementById( "city" ).value );
	}
	if ( document.getElementById( "cityarea" ) != null && document.getElementById( "cityarea" ).value != "{cityarea}" ) {
		tail += "&cityarea=" + encodeURI( document.getElementById( "cityarea" ).value );
	}
	location.href = "home.php?" + fn + "&p=" + p + tail + "#anchor";
}