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/*Picture Left Roller*/
$ ( function ( ) {
function LeftRoller ( ) {
var Lis = $ ( "#LeftRoller #LeftRollerRoll>ul>li" ) ;
var sWidth = Lis . eq ( 0 ) . outerWidth ( true ) ; //图片宽度
var sHeight = Lis . eq ( 0 ) . outerHeight ( true ) ; //图片宽度
var len = Lis . length ; //播放数量
var index = 0 ; //当前在首页索引
var picTimer ; //播放对像
//显示图片
var WinWidth = $ ( "#LeftRoller" ) . width ( ) ;
for ( var j = 0 ; j < len ; j ++ ) {
var wtmp = j * sWidth ;
if ( wtmp > $ ( "#LeftRoller" ) . width ( ) ) { break ; }
WinWidth = wtmp ;
}
$ ( "#LeftRoller #LeftRollerRoll" ) . width ( sWidth * len * 2 ) . height ( sHeight ) . css ( 'position' , 'relative' ) ;
$ ( "#LeftRoller #LeftRollerWin" ) . width ( WinWidth ) . height ( sHeight ) . css ( 'overflow' , 'hidden' ) ;
Lis . clone ( ) . appendTo ( "#LeftRoller #LeftRollerRoll>ul" ) ; //重复一次
showPics ( index ) ;
//鼠标滑上焦点图时停止自动播放,滑出时开始自动播放
$ ( "#LeftRoller #LeftRollerWin" ) . hover ( function ( ) {
clearInterval ( picTimer ) ;
} , function ( ) {
picTimer = setInterval ( function ( ) {
showPics ( index ) ;
} , 4000 ) ; //此4000代表自动播放的间隔, 单位: 毫秒
} ) . trigger ( "mouseleave" ) ;
$ ( '#LeftRoller>div:eq(1)>a' ) . bind ( 'click' , function ( ) {
index = $ ( this ) . index ( ) ;
showPics ( index ) ;
} ) ;
function cReset ( ) {
if ( index == len ) { index = 0 ; $ ( "#LeftRoller #LeftRollerRoll" ) . delay ( 1000 ) . css ( { left : 0 } ) ; }
$ ( '#LeftRoller>div:eq(1)>a' ) . removeClass ( 'current' ) . eq ( index ) . addClass ( 'current' ) ;
index ++ ;
}
function showPics ( index ) { //普通切换
var nowLeft = - index * sWidth ;
//移动效果
$ ( "#LeftRoller #LeftRollerRoll" ) . animate ( { left : nowLeft } , 1000 , cReset ) ;
}
}
if ( typeof LeftRoller == 'function' ) {
LeftRoller ( ) ;
}
} ) ;