/**
* @author feiwen
*/
(function($){
$.fn.textSlider = function(settings){
settings = jQuery.extend({
speed : "normal",
line : 2,
timer : 1000
}, settings);
return this.each(function() {
$.fn.textSlider.scllor( $( this ), settings );
});
};
$.fn.textSlider.scllor = function($this, settings){
//alert($this.html());
var ul = $( "ul:eq(0)", $this );
var timerID;
var li = ul.children();
var _btnUp=$(".up:eq(0)", $this)
var _btnDown=$(".down:eq(0)", $this)
var liHight=$(li[0]).height();
var upHeight=0-settings.line*liHight;//滚动的高度；
var scrollUp=function(){
_btnUp.unbind("click",scrollUp);
ul.animate({marginTop:upHeight},settings.speed,function(){
for(i=0;i