// collapsible.js

function togglePannelStatus(content)
{
    var expand = (content.style.display=="none");
    setPannelStatus(content,expand);
}


function setPannelStatus(content, expand){
	content.style.display = (expand ? "block" : "none");
    var chevron = content.parentNode
        .firstChild.childNodes[1].childNodes[0];
    chevron.src = chevron.src
        .split(expand ? "/images/expand.gif" : "/images/collapse.gif")
        .join(expand ? "/images/collapse.gif" : "/images/expand.gif");
}