plus='http://www.detkikomi.ru/disain/plus.png';   
minus='http://www.detkikomi.ru/disain/minus.png';   

function addIcons(){  
td=document.getElementsByTagName('td');  
for(i=0;i<td.length;i++){  
if(td[i].className=='gTableTop'){  
td[i].innerHTML='<img src="'+minus+'" border="0" align="absmiddle" style="cursor:pointer;" onclick="hideForum(this);" /> '+td[i].innerHTML;}}}  

function toggle(obj){obj.style.display=obj.style.display=='none'?'':'none';}  

function hideForum(obj){  
tr=obj.parentNode.parentNode.parentNode.getElementsByTagName('tr');  
for(i=1;i<tr.length;i++){  
toggle(tr[i]);}obj.src=obj.src==minus?plus:minus;}  

addIcons();