var open_folder = new Image();
open_folder.src = '/images/open_folder.gif';
var close_folder = new Image();
close_folder.src = '/images/close_folder.gif';
function toggleFolder(mid, lnk) {
	var img = lnk.getElementsByTagName('img')[0];
	var folder_state = null;
	if( img.src.indexOf('close') == -1 ) {
		img.src = close_folder.src;
		if( $(mid) )
			Element.hide(mid);
		folder_state = 'close';
	} else {
		img.src = open_folder.src;
		if( $(mid) )
			Element.show(mid);
		folder_state = 'open';
	}
	new Ajax.Request('/ajax/sitemap.php', {
		parameters:	$H({
			action:		'folder_state',
			menu_id:		mid,
			state:		folder_state
		}).toQueryString()
	});
}

var onloads = new Array();
function doLoad() {
	for( var i=0; i<onloads.length; i++ ) {
		eval( onloads[i] );
	}
}

function appendLoad(code) {
	onloads.push( code );
}
(function(){
	var func = function() { doLoad(); }
	var oldonload = window.onload;
	window.onload = typeof window.onload != 'function' ?
		func : function() {oldonload();func();};
})();

String.prototype.startsWith = function(val) {
	return this.indexOf(val) == 0;
}

String.prototype.trim = function() {
	return this.replace(/^\s*|\s*$/g,'');
}