(function($){$.fn.visited=function(fn){var iframe=document.createElement('iframe'),links=this,body=$('body'),i,win,visitedList={},filter;iframe.style.position='absolute';iframe.style.left='-1000px';iframe.height='1';iframe.width='1';iframe.id='visitedIF';body.append(iframe);win=iframe.contentDocument||iframe.contentWindow.document;win.write(iframeHeader());for(i=0;i<links.length;i++){win.write('<a href="'+links[i].href+'">'+links[i].href+'</a>');}win.write(iframeFooter());win.close();$('a',win).each(function(i){var visited=getStyle(this,'color',win);visitedList[i]=!!(visited=='rgb(0, 255, 0)'||visited=='#0f0');});$(iframe).remove();filter=function(i){return visitedList[i];};return $.isFunction(fn)?this.filter(filter).each(fn):this.filter(filter);};function getStyle(x,styleProp,win){var x,y;if(x.currentStyle)y=x.currentStyle[styleProp];else if(win.defaultView.getComputedStyle){y=win.defaultView.getComputedStyle(x,null).getPropertyValue(styleProp);}return y;}function iframeHeader(){return['<!'+'DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"','    "http://www.w3.org/TR/html4/loose.dtd">','<'+'html>','<'+'head>','<'+'title>',':visited iframe','<'+'/title>','<'+'style>','a:visited { color: #0f0 ! important }','<'+'/style>','<'+'/head>','<'+'body>'].join("\n");}function iframeFooter(){return'<'+'/body>'+'<'+'/html>';}})(jQuery);