急急急急急!!!!各位大哥大姐。
<script type="text/javascript">
//<![CDATA[
<!--
function scrollerObj(name,initH,initW,heightB,widthB,content,initBg,Bg,speed,initFl){
//**data**//
this.name=name;
this.initH=initH;
this.initW=initW;
this.heightB=heightB;
this.widthB=widthB;
this.content=content;
this.initBg=initBg;
this.Bg=Bg;
this.iniFl=initFl;
this.speed=parseInt(speed);
this.timer = name + "Timer";
this.elem;
//**methods**//
this.getElement = getElement;
this.createLayer=createLayer;
this.scrollLayer = scrollLayer;
this.scrollLoop=scrollLoop;
//**initiate methods**//
this.createLayer();
this.getElement();
this.scrollLayer();
}
//**call this method to stop scrolling**//
function scrollLoop(s){
this.speed = s;
}
//**pretty obvious**//
function scrollLayer(){
if(parseInt(this.elem.style.top)>(this.elem.offsetHeight*(-1))){
this.elem.style.top = parseInt(this.elem.style.top)-this.speed;
//alert(parseInt(this.elem.style.top)+"\n"+this.elem.id);
}
else {this.elem.style.top = this.initH;}
}
//**get the specific dom-expression**//
function getElement(){
if(document.getElementById){
this.elem = document.getElementById(this.name);
}