//抖动效果//intShakes：抖动次数；intDistance：抖动左右距离；intDuration：持续时间jQuery.fn.shake = function (intShakes, intDistance, intDuration) {    this.each(function () {        var jqNode = $(this);        jqNode.css({ position: ‘relative‘ });        for (var x = 1; x <= intShakes; x++) {            jqNode.animate({ left: (intDistance * -1) }, (((intDuration / intShakes) / 4)))            .animate({ left: intDistance }, ((intDuration / intShakes) / 2))            .animate({ left: 0 }, (((intDuration / intShakes) / 4)));        }    });    return this;}

$(‘#tishi‘).shake(3, 20, 400);