/*------------------------------------------------------------------------------
ⓒ Copyright 2005, Flyfox All right reserved.
@파일내용: Scroll Layer Appoint Javascript Function
@수정내용/수정자/수정일:
* function 간의 간격 : 3 line
* 내부블럭( 피제어부 ) 들여쓰기 : 2 column
------------------------------------------------------------------------------*/
if ( typeof( scrollLayerAppoint ) == 'undefined' ){
/*-------------------------------------
Scroll Layer Original
-------------------------------------*/
var scrollLayerAppoint = function ( divid, appointid, Objnm, term_top, term_side ){
this.getBrowser();
this.timerID;
{ // 스크롤 레이어 이름
if ( this.isNS4 ) {
this.scrollingBanner = document[ divid ];
}
else if ( this.isDOM ) {
this.scrollingBanner = this.getRef( divid );
}
}
{ // 지정위치
if ( appointid != '' ){
if ( this.isNS4 ) {
this.appointid = document[appointid];
}
else if ( this.isDOM ) {
this.appointid = this.getRef( appointid );
}
}
}
this.Objnm = Objnm; // 스크롤 실행변수 이름
this.term_top = term_top; // 스크롤 레이어 상단 간격
this.term_side = term_side; // 스크롤 레이어 측면 간격
}
/*-------------------------------------
Scroll Layer Property - get Browser
-------------------------------------*/
scrollLayerAppoint.prototype.getBrowser = function (){
this.isDOM = ( document.getElementById ? 1 : 0 );
this.isIE4 = ( ( document.all && !this.isDOM ) ? 1 : 0 );
this.isNS4 = ( document.layers ? 1 : 0 );
this.isNS = navigator.appName == "Netscape";
}
/*-------------------------------------
Scroll Layer Property - get Document Obj
-------------------------------------*/
scrollLayerAppoint.prototype.getRef = function ( id ){
if ( this.isDOM ) return document.getElementById( id );
if ( this.isIE4 ) return document.all[id];
if ( this.isNS4 ) return document.layers[id];
}
/*-------------------------------------
Scroll Layer Property - reset position
-------------------------------------*/
scrollLayerAppoint.prototype.resetPosition = function (){
if ( this.appointid != null ){
if ( this.isNS4 ) {
this.MaxtopQuantity = this.appointid.top;
this.MaxleftQuantity = this.appointid.style.left;
}
else if ( this.isDOM ) {
this.MaxtopQuantity = this.appointid.offsetTop;
this.MaxleftQuantity = this.appointid.offsetLeft;
}
}
this.appoint_top = this.MaxtopQuantity;
this.MaxtopQuantity += this.term_top;
this.MaxleftQuantity += this.term_side;
if ( this.scrollingBanner != null ){
if ( this.isNS4 ) {
this.scrollingBanner.top = this.MaxtopQuantity;
this.scrollingBanner.style.left = this.MaxleftQuantity;
}
else if ( this.isDOM ) {
this.scrollingBanner.style.top = this.MaxtopQuantity;
this.scrollingBanner.style.left = this.MaxleftQuantity;
}
}
}
/*-------------------------------------
Scroll Layer Property - action start
-------------------------------------*/
scrollLayerAppoint.prototype.start = function (){
{ // 레이어, 지정위치 존재여부 체크
if ( this.scrollingBanner == null ){
return;
}
if ( this.appointid == null ){
return;
}
}
this.resetPosition(); // reset position 실행
{ // 출력
if ( this.isNS4 ) {
this.scrollingBanner.visibility = "visible";
}
else if ( this.isDOM ) {
this.scrollingBanner.style.visibility = "visible";
}
}
this.movingSlide();
}
/*-------------------------------------
Scroll Layer Property - action stop
-------------------------------------*/
scrollLayerAppoint.prototype.stop = function (){
clearTimeout( this.timerID );
this.resetPosition(); // reset position 실행
}
/*-------------------------------------
Scroll Layer Property - moving
-------------------------------------*/
scrollLayerAppoint.prototype.movingSlide = function (){
var yMenuFrom, yMenuTo, yOffset, timeoutNextCheck;
{ // yMenuFrom, yMenuTo 계산
if ( this.isNS4 ) {
yMenuFrom = this.scrollingBanner.top;
yMenuTo = window.pageYOffset;
}
else if ( this.isDOM ) {
yMenuFrom = parseInt ( this.scrollingBanner.style.top, 10 );
yMenuTo = ( this.isNS ? window.pageYOffset : document.body.scrollTop );
}
if ( yMenuTo < ( this.MaxtopQuantity ) ) yMenuTo = this.MaxtopQuantity;
else yMenuTo -= this.appoint_top - this.term_top;
//window.status = 'yMenuTo=' + yMenuTo + ', yMenuFrom=' + yMenuFrom + ',MaxleftQuantity=' + this.MaxleftQuantity;
}
timeoutNextCheck = 500;
if ( yMenuFrom != yMenuTo ) {
yOffset = Math.ceil( Math.abs( yMenuTo - yMenuFrom ) / 10 );
if ( yMenuTo < yMenuFrom ) yOffset = -yOffset;
if ( this.isNS4 ) this.scrollingBanner.top += yOffset;
else if ( this.isDOM ) this.scrollingBanner.style.top = parseInt ( this.scrollingBanner.style.top, 10 ) + yOffset;
timeoutNextCheck = 10;
}
this.timerID = setTimeout ( this.Objnm + ".movingSlide();", timeoutNextCheck );
}
}
/*------------------------------------------------------------------------------
호출예제
------------------------------------------------------------------------------*/