var ids=new Array();

function QAinit(){
if(document.getElementById){
var tids=document.getElementsByTagName('img');
for(i=0;i<tids.length;i++)if(tids[i].className=="subtitle")ids[ids.length]=tids[i];
for(i=0;i<ids.length;i++)ids[i].onmouseup=setstate;
}}

function setstate(){
 for(i=0;i<ids.length;i++){
  if(ids[i]==this){
   var d=this.parentNode.getElementsByTagName('span')[0];
   var i=this.parentNode.getElementsByTagName('img')[0];
   if(d.style.display=="inline") {
    d.style.display="none";
    i.src = "expand.gif";
   } else {
    d.style.display="inline";
    i.src = "unexpand.gif";
   }
  }
 }
}

function expandall(){
if(document.getElementById){
for(i=0;i<ids.length;i++)ids[i].parentNode.getElementsByTagName('span')[1].style.display="block";
}}

function collapseall(){
if(document.getElementById){
for(i=0;i<ids.length;i++)ids[i].parentNode.getElementsByTagName('span')[1].style.display="none";
}}

window.onload=QAinit;