var persisteduls = new Object()
var ddtreemenu = new Object()

ddtreemenu.closefolder = "Imagens/Layout/blank.gif" //set image path to "closed" folder image
ddtreemenu.openfolder = "Imagens/Layout/blank.gif" //set image path to "open" folder image
//////////No need to edit beyond here///////////////////////////
ddtreemenu.createTree = function (treeid, enablepersist, persistdays) {
    var ultags = document.getElementById(treeid).getElementsByTagName("ul")
    if (typeof persisteduls[treeid] == "undefined") persisteduls[treeid] = (enablepersist == true && ddtreemenu.getCookie(treeid) != "") ? ddtreemenu.getCookie(treeid).split(",") : ""
    for (var i = 0; i < ultags.length; i++)
    ddtreemenu.buildSubTree(treeid, ultags[i], i)
    if (enablepersist == true) { //if enable persist feature
        var durationdays = (typeof persistdays == "undefined") ? 1 : parseInt(persistdays)
        ddtreemenu.dotask(window, function () {
            ddtreemenu.rememberstate(treeid, durationdays)
        },
        "unload") //save opened UL indexes on body unload
    }
}

ddtreemenu.buildSubTree = function (treeid, ulelement, index) {
    ulelement.parentNode.className = "submenu"
    if (typeof persisteduls[treeid] == "object") { //if cookie exists (persisteduls[treeid] is an array versus "" string)
        if (ddtreemenu.searcharray(persisteduls[treeid], index)) {
            ulelement.setAttribute("rel", "open")
            ulelement.style.display = "block"
            ulelement.parentNode.style.backgroundImage = "url(" + ddtreemenu.openfolder + ")"
        }
        else ulelement.setAttribute("rel", "closed")
    } //end cookie persist code
    else if (ulelement.getAttribute("rel") == null || ulelement.getAttribute("rel") == false) //if no cookie and UL has NO rel attribute explicted added by user
    ulelement.setAttribute("rel", "closed")
    else if (ulelement.getAttribute("rel") == "open") //else if no cookie and this UL has an explicit rel value of "open"
    ddtreemenu.expandSubTree(treeid, ulelement) //expand this UL plus all parent ULs (so the most inner UL is revealed!)
    ulelement.parentNode.onclick = function (e) {

		/* ULISSES
		* aqui esta o bug fix
		* eu verifico se o click foi sobre um SPAN
		* se sim, return
		* caso contrário, continua o efeito
		* IVAN :)
		*/
		var targ;
		var IE = false;
		if (!e) var e = window.event;
		if (e.target){
			targ = e.target;
			IE = true;
		}
		else if (e.srcElement) targ = e.srcElement;
		if (targ.nodeType == 3) // defeat Safari bug
			targ = targ.parentNode;
		if(targ.tagName + '' == 'SPAN'){ 
			return;
		}


		var submenu = this.getElementsByTagName("ul")[0];
		
        if (submenu.getAttribute("rel") == "closed") {
            submenu.style.display = "block";
            submenu.setAttribute("rel", "open");
            ulelement.parentNode.style.backgroundImage = "url(" + ddtreemenu.openfolder + ")";
        }
        else if (submenu.getAttribute("rel") == "open") {
            submenu.style.display = "none";
            submenu.setAttribute("rel", "closed");
            ulelement.parentNode.style.backgroundImage = "url(" + ddtreemenu.closefolder + ")";
        }
		var lis = this.parentNode.parentNode.parentNode.getElementsByTagName('LI');

		for(var i=0; i<lis.length; i++){
			if(lis[i].id + '' == parseInt(lis[i].id) + '' && lis[i].className == 'submenu' && lis[i] != this){
				lis[i].getElementsByTagName("ul")[0].style.display = "none";
				lis[i].getElementsByTagName("ul")[0].setAttribute("rel", "closed");
				if(IE)
					lis[i].style.zoom = 1;
			}
		}
		
		
        ddtreemenu.preventpropagate(e);
    }
    ulelement.onclick = function (e) {
        ddtreemenu.preventpropagate(e)
    }
}

ddtreemenu.expandSubTree = function (treeid, ulelement) { //expand a UL element and any of its parent ULs
    var rootnode = document.getElementById(treeid)
    var currentnode = ulelement
    currentnode.style.display = "block"
    currentnode.parentNode.style.backgroundImage = "url(" + ddtreemenu.openfolder + ")"
    while (currentnode != rootnode) {
        if (currentnode.tagName == "UL") { //if parent node is a UL, expand it too
            currentnode.style.display = "block"
            currentnode.setAttribute("rel", "open") //indicate it's open
            currentnode.parentNode.style.backgroundImage = "url(" + ddtreemenu.openfolder + ")"
        }
        currentnode = currentnode.parentNode
    }
}

ddtreemenu.flatten = function (treeid, action) { //expand or contract all UL elements
    var ultags = document.getElementById(treeid).getElementsByTagName("ul")
    for (var i = 0; i < ultags.length; i++) {
        ultags[i].style.display = (action == "expand") ? "block" : "none"
        var relvalue = (action == "expand") ? "open" : "closed"
        ultags[i].setAttribute("rel", relvalue)
        ultags[i].parentNode.style.backgroundImage = (action == "expand") ? "url(" + ddtreemenu.openfolder + ")" : "url(" + ddtreemenu.closefolder + ")"
    }
}

ddtreemenu.rememberstate = function (treeid, durationdays) { //store index of opened ULs relative to other ULs in Tree into cookie
    var ultags = document.getElementById(treeid).getElementsByTagName("ul")
    var openuls = new Array()
    for (var i = 0; i < ultags.length; i++) {
        if (ultags[i].getAttribute("rel") == "open") openuls[openuls.length] = i //save the index of the opened UL (relative to the entire list of ULs) as an array element
    }
    if (openuls.length == 0) //if there are no opened ULs to save/persist
    openuls[0] = "none open" //set array value to string to simply indicate all ULs should persist with state being closed
    ddtreemenu.setCookie(treeid, openuls.join(","), durationdays) //populate cookie with value treeid=1,2,3 etc (where 1,2... are the indexes of the opened ULs)
}

////A few utility functions below//////////////////////
ddtreemenu.getCookie = function (Name) { //get cookie value
    var re = new RegExp(Name + "=[^;]+", "i"); //construct RE to search for target name/value pair
    if (document.cookie.match(re)) //if cookie found
    return document.cookie.match(re)[0].split("=")[1] //return its value
    return ""
}

ddtreemenu.setCookie = function (name, value, days) { //set cookei value
    var expireDate = new Date()
    //set "expstring" to either future or past date, to set or delete cookie, respectively
    var expstring = expireDate.setDate(expireDate.getDate() + parseInt(days))
    document.cookie = name + "=" + value + "; expires=" + expireDate.toGMTString() + "; path=/";
}

ddtreemenu.searcharray = function (thearray, value) { //searches an array for the entered value. If found, delete value from array
    var isfound = false
    for (var i = 0; i < thearray.length; i++) {
        if (thearray[i] == value) {
            isfound = true
            thearray.shift() //delete this element from array for efficiency sake
            break
        }
    }
    return isfound
}

ddtreemenu.preventpropagate = function (e) { //prevent action from bubbling upwards
	try{
	    if (typeof e != "undefined") e.stopPropagation();
	    else event.cancelBubble = true;
	}catch(err){
		;
	}
}

ddtreemenu.dotask = function (target, functionref, tasktype) { //assign a function to execute to an event handler (ie: onunload)
    var tasktype = (window.addEventListener) ? tasktype : "on" + tasktype
    if (target.addEventListener) target.addEventListener(tasktype, functionref, false)
    else if (target.attachEvent) target.attachEvent(tasktype, functionref)
}