var ids=new Array();

function QAinit(){
if(document.getElementById){
var tids=document.getElementsByTagName('div');
for(i=0;i<tids.length;i++)if(tids[i].className=="question")ids[ids.length]=tids[i];
for(i=0;i<ids.length;i++)ids[i].onmouseup=setstate;
document.getElementById("sub_menu_2").style.display = "none";
}}

function setstate(){
for(i=0;i<ids.length;i++){
if(ids[i]==this){
var d=this.parentNode.getElementsByTagName('div')[1];
if(d.style.display=="block")d.style.display="none";
else d.style.display="block";
}}}

function expandall(){
if(document.getElementById){
for(i=0;i<ids.length;i++)ids[i].parentNode.getElementsByTagName('div')[1].style.display="block";
document.getElementById("sub_menu_1").style.display = "none";
document.getElementById("sub_menu_2").style.display = "block";
}}

function collapseall(){
if(document.getElementById){
for(i=0;i<ids.length;i++)ids[i].parentNode.getElementsByTagName('div')[1].style.display="none";
document.getElementById("sub_menu_2").style.display = "none";
document.getElementById("sub_menu_1").style.display = "block";
}}

window.onload=QAinit;