// list-style images aren't preloaded in opera (<=7.5), so they need to be preloaded
image1 = new Image();image1.src = "/modules/Freaks/pnimages/icons/plus.gif";
image2 = new Image();image2.src = "/modules/Freaks/pnimages/icons/minus.gif";
image3 = new Image();image3.src = "/modules/Freaks/pnimages/icons/document.gif";

// tree handler
function tree_toggle( id, name ) {
	var el = document.getElementById( name+'_tree_'+id );
	var parent = document.getElementById( name+'_treenode_'+id );
    if( !el ) {
        return;
    }
	if( el.style.display=='none' ) {
		el.style.display='';
        if( parent.className=='folder' ) {
            parent.className = 'ofolder';
        } else {
            parent.className = 'oweb';
        }
	} else {
		el.style.display='none';
        if( parent.className=='ofolder' ) {
            parent.className = 'folder';
        } else {
            parent.className = 'web';
        }
	}
}