方法名称 方法说明
$(objID).bgStretcher.play() Resume background slideshow
$(objID).bgStretcher.pause() Pause background slideshow
$(objID).bgStretcher.sliderDestroy() Destroy background slideshow
浏览器兼容性：
MS Internet Explorer 6, 7, 8, 9
Mozilla Firefox 2, 3, 4
Opera 9+
Apple Safari
Google Chrome