Код:
<script type="text/javascript"> var we=document.getElementsByTagName("ul") var x=0 for (x=0; x<=(we.length-1); x++) {if (we[x].innerHTML.indexOf("pa-online")!=-1) {we[x].getElementsByClassName('pa-online')[0].innerHTML = "<img src='Картинка ON' />"} else if ((we[x].innerHTML.indexOf("pa-online")==-1)&&(we[x].innerHTML.indexOf("pa-author")!=-1)){ we[x].innerHTML=we[x].innerHTML+"<img src='Картинка OFF' />"}} </script>