function toggleBlock (blockid) {
var block = document.getElementById(blockid);
if (block.className=="collapseblock") {
block.className="expandblock";
}
else {
block.className="collapseblock";
}
}

function toggleBlockLink (blockid) {
var block = document.getElementById(blockid);
if (block.className=="collapseblockLink") {
block.className="expandblockLink";
}
else {
block.className="collapseblockLink";
}
}

function toggleClass (id, newClass) {
var newClass = document.getElementById(id);
if (newClass.className=="selected") {
newClass.className="";
}

else {
newClass.className="selected";
}
}