// Store old onload and execute in new onload
var oldOnload = window.onload;
window.onload = function() {
	var exploreBar = document.getElementById("ess-explore-heading");
	var exploreSitemap = document.getElementById("ess-explore-sitemap");

	exploreBar.style.cursor = "pointer";
	exploreBar.className = "collapsed";
	exploreBar.title = "Click to expand sitemap";
	exploreSitemap.style.display = "none";
	exploreBar.onclick = function() {
		exploreSitemap.style.display = exploreSitemap.style.display == "none" ? "block" : "none";
		exploreBar.className = exploreSitemap.style.display == "none" ? "collapsed" : "expanded";
		exploreBar.title = exploreSitemap.style.display == "none" ? "Click to expand sitemap" : "Click to collapse sitemap";
		return false;
	};
	if(typeof oldOnload == 'function') {
		oldOnload();
	}
}