function showitem(objname){

	obj = document.getElementById(objname);
	var origstatus = obj.style.display;

	fcount = getElementsByClass("course_details");
	var f=1
	for (f=1;f<=fcount.length;f++){
		obj = document.getElementById("course"+f);
		obj.style.display = "none";
		obj = document.getElementById("course"+f+"h");
		obj.className = "collapsed";
	}

	obj = document.getElementById(objname);
	if(origstatus == "block"){

		obj.style.display = "none";
		obj = document.getElementById(objname+"h");
		obj.className = "collapsed";

	}else{

		obj.style.display = "block";
		obj = document.getElementById(objname+"h");
		obj.className = "expanded";

	}

	return false;
}

function getElementsByClass(searchClass,node,tag) {
	var classElements = new Array();
	if ( node == null )
		node = document;
	if ( tag == null )
		tag = '*';
	var els = node.getElementsByTagName(tag);
	var elsLen = els.length;
	var pattern = new RegExp('(^|\\s)'+searchClass+'(\\s|$)');
	for (i = 0, j = 0; i < elsLen; i++) {
		if ( pattern.test(els[i].className) ) {
			classElements[j] = els[i];
			j++;
		}
	}
	return classElements;
}