jquery图片放大插件鼠标悬停图片放大效果

都知道jquery都插件是非常强大的，最近分享点jquery插件效果，方便效果开发使用。

一、HTML代码

二、插件代码（插件名称：jquery.zoomImgRollover.js）

(function(jQuery){

jQuery.fn.zoomImgRollover = function(options) {

var defaults = {

percent:30,

duration:600

};

var opts = jQuery.extend(defaults, options);

// static zoom function

function imageZoomStep(jZoomImage, x, origWidth, origHeight)

{

var width = Math.round(origWidth * (.5 + ((x * opts.percent) / 200))) * 2;

var height = Math.round(origHeight * (.5 + ((x * opts.percent) / 200))) * 2;

var left = (width - origWidth) / 2;

var top = (height - origHeight) / 2;

jZoomImage.css({width:width, height:height, top:-top, left:-left});

}

return this.each(function()

{

var jZoomImage = jQuery(this);

var origWidth = jZoomImage.width();

var origHeight = jZoomImage.height();

// add css ness. to allow zoom

jZoomImage.css({position: "relative"});

jZoomImage.parent().css({overflow: "hidden", display:"block", position: "relative", width: origWidth, height: origHeight});

jZoomImage.mouseover(function()

{

jZoomImage.stop().animate({dummy:1},{duration:opts.duration, step:function(x)

{

imageZoomStep(jZoomImage, x, origWidth, origHeight)

}});

});

jZoomImage.mouseout(function()

{

jZoomImage.stop().animate({dummy:0},{duration:opts.duration, step:function(x)

{

imageZoomStep(jZoomImage, x, origWidth, origHeight)

}});

});

});

};

})(jQuery);