(function($){$.fn.extend({imghover:function(opt){return this.each(function(){opt=$.extend({prefix:"",suffix:"_o",src:"",btnOnly:true,fade:false,fadeSpeed:500},opt||{});var node=$(this);if(!node.is("img")&&!node.is(":image")){var sel="img,:image";if(opt.btnOnly)sel="a "+sel;node.find(sel).imghover(opt);return}var orgImg=node.attr("src"),hoverImg;if(opt.src)hoverImg=opt.src;else{hoverImg=orgImg;if(opt.prefix){var pos=hoverImg.lastIndexOf("/");if(pos>0)hoverImg=hoverImg.substr(0,pos-1)+opt.prefix+hoverImg.substr(pos-1);else hoverImg=opt.prefix+hoverImg}if(opt.suffix){var pos=hoverImg.lastIndexOf(".");if(pos>0)hoverImg=hoverImg.substr(0,pos)+opt.suffix+hoverImg.substr(pos);else hoverImg=hoverImg+opt.suffix}}if(opt.fade){var offset=node.offset(),hover=node.clone(true);hover.attr("src",hoverImg);hover.css({position:"absolute",left:offset.left,top:offset.top,zIndex:1e3}).hide().insertAfter(node);node.mouseover(function(){var offset=node.offset();hover.css({left:offset.left,top:offset.top});hover.fadeIn(opt.fadeSpeed);node.fadeOut(opt.fadeSpeed,function(){node.show()})});hover.mouseout(function(){node.fadeIn(opt.fadeSpeed);hover.fadeOut(opt.fadeSpeed)})}else node.hover(function(){node.attr("src",hoverImg)},function(){node.attr("src",orgImg)})})}})})(jQuery);