/**
* 导航栏鼠标滑过图片切换
* Date: 2009/05/12
*
* @author 黄家驹
* @version 1.0
*
**/
(function($) {                                          // Compliant with jquery.noConflict()
    $.fn.imgHover = function(settings) {
        settings = $.extend({
            suffix: '_over'   //图片后缀标识
        }, settings);



        return this.each(function() {                           // Returns the element collection. Chainable.
            var img = $(this).find('img');
            var path = img.attr('src') ;   //图片路径
            var overImgName=path.substr(0, path.length - 4) + settings.suffix + path.substr(path.length - 4);
            //判断是否为当前图片
            if ($(this).hasClass('curr')) {
                img.attr('src', overImgName);
            } else {
                img.hover(function() {
                    img.attr('src', overImgName);
                }, function() {
                    img.attr('src', path);
                    path = img.attr('src');
                });
            }
        });
    };
})(jQuery);