function divOpen(divID) {
document.getElementById('divC_' + divID).style.display = "block";
document.getElementById('divS_' + divID).innerHTML="<a href=\"javascript:divClose('" + divID + "');\"><img src=\"images/icons/expanded.png\" border=\"0\"></a>";
}
function divClose(divID) {
document.getElementById('divC_' + divID).style.display = "none";
document.getElementById('divS_' + divID).innerHTML="<a href=\"javascript:divOpen('" + divID + "');\"><img src=\"images/icons/closed.png\" border=\"0\"></a>";
} 


function divOpen2(divID) {
document.getElementById('divC_' + divID).style.display = "block";
document.getElementById('divS_' + divID).innerHTML="<a href=\"javascript:divClose('" + divID + "');\">Close  " + divID + "...</a>";
}
function divClose2(divID) {
document.getElementById('divC_' + divID).style.display = "none";
document.getElementById('divS_' + divID).innerHTML="<a href=\"javascript:divOpen('" + divID + "');\">Open  " + divID + "...</a>";
}

var subs_array = new Array("sub1");// Put the id's of your hidden divs in this array
function displaySubs(the_sub){
if (document.getElementById(the_sub).style.display==""){
document.getElementById(the_sub).style.display = "none";return
}
for (i=0;i<subs_array.length;i++){
var my_sub = document.getElementById(subs_array[i]);
my_sub.style.display = "none";
}
document.getElementById(the_sub).style.display = "";
}