function listExpand(label) {
	var o = document.getElementById('lst' + label.id.substring(3));
	expandV(o, 20);
	label.onclick = function(){listCollapse(this)};
	label.firstChild.src = 'images/minimize.gif';
	return false;
}
function listCollapse(label) {
	var o = document.getElementById('lst' + label.id.substring(3));
	collapseV(o, 20);
	label.onclick = function(){listExpand(this)};
	label.firstChild.src = 'images/maximize.gif';
	return false;
}
onLoad(function(){
	var dv = document.getElementById('list_files');
	var xp = getElementsByClass('listExpand'),
		xpLen = xp.length;
	for(var i=1; i<xpLen; i++){
		xp[i].style.height='0px';
	}
	if(dv.firstChild.nodeName === 'DIV'){
		listExpand(document.getElementById('list_files').firstChild);
	} else {
		listExpand(document.getElementById('list_files').childNodes[1]);
	}
});