/*
	Expandable Listmenu Script
	Author : Daniel Nolan
	http://www.bleedingego.co.uk/webdev.php
*/

function initMenus() {
    if (!document.getElementsByTagName) return;
	
    var aMenus = document.getElementsByTagName("LI");
    for (var i = 0; i < aMenus.length; i++) {
        var mclass = aMenus[i].className;
        if (mclass.indexOf("treenode") > -1) {
            var submenu = aMenus[i].childNodes;
            for (var j = 0; j < submenu.length; j++) {
                if (submenu[j].tagName == "A") {
					
                    submenu[j].onclick = function() {
                        var node = this.nextSibling;
											
                        while (1) {
                            if (node != null) {
                                if (node.tagName == "UL") {
                                    var d = (node.style.display == "none")
                                    node.style.display = (d) ? "block" : "none";
                                    this.className = (d) ? "treeopen" : "treeclosed";
                                    return false;
                                }
                                node = node.nextSibling;
                            } else {
                                return false;
                            }
                        }
                        return false;
                    }
					
                    submenu[j].className = (mclass.indexOf("open") > -1) ? "treeopen" : "treeclosed";
                }
				
                if (submenu[j].tagName == "UL")
                    submenu[j].style.display = (mclass.indexOf("open") > -1) ? "block" : "none";
            }
        }
    }
}

window.onload = initMenus;