/*
 * menuExpandable2.js - implements an expandable menu based on a HTML list
 * Author: Dave Lindquist (dave@gazingus.org)
 */

if (!document.getElementById) {
    document.getElementById = function() { return null; }
}

var menuCookie = "menusToExpand";
var itemCookie = "itemToHighlight";

function initializeMenu(menuId, actuatorId) {
    var menu = document.getElementById(menuId);
    var actuator = document.getElementById(actuatorId);

    if (menu == null || actuator == null) return;

    //if (window.opera) return; // I'm too tired
    
    actuator.parentNode.style.backgroundImage = "url(img/folder.gif)";
    actuator.onclick = function() {
    	try{
    	//alert(menu);
        var display = menu.style.display;
        this.parentNode.style.backgroundImage =
            (display == "block") ? "url(img/folder.gif)" : "url(img/folderopen.gif)";
        menu.style.display = (display == "block") ? "none" : "block";
    	}catch(e){
    		alert(e.message);
    	}
        /*
        // Begin custom code for remembering expanded menus with cookies
        var menusToExpand = getCookie(menuCookie);
        if (menu.style.display == "block") {
            // set a cookie to keep the menu expanded
            if (menusToExpand == null) {
                setCookie(menuCookie,menuId);
            } else if (menusToExpand.indexOf(menuId) == -1) {
                setCookie(menuCookie,menusToExpand+","+menuId);
            }
        } else {
            // remove it from the expanded cookie list
            if (menusToExpand.indexOf(menuId) != -1) {
                // check for comma after menu
                if (menusToExpand.indexOf(menuId+",") != -1) {
                    menusToExpand = menusToExpand.replace(menuId+",","");
                } else {
                    menusToExpand = menusToExpand.replace(menuId,"");
                }
                if (menusToExpand == "") {
                    deleteCookie(menuCookie);
                } else {
                    setCookie(menuCookie,menusToExpand);
                }
            }
        }
        */
        // End custom code
        
        return false;
    }
}

// This function loops through all the <ul>'s in the document and
// initializes the menus for them if they have menu classes
function initializeMenus() {
    var uls = document.getElementsByTagName("ul");
    for (i = 0; i < uls.length; i++) {
        if (uls[i].className == "menuList") {
            decorateMenu(uls[i]);
          //  openMenuCustom(uls[i].id);
        }
    }

    // user must have cookies enabled for this to work
    expandMenus();
}

function decorateMenu(menu) {
    var links = menu.getElementsByTagName("a");
    var lists = document.getElementsByTagName("ul");

    var actuators = new Array();
    var nonActuators = new Array();
    // build an array of actuators
    for (i=0; i < links.length; i++) {
        if (links[i].className == "actuator") {
            actuators[actuators.length] = links[i];
        } else {
            nonActuators[nonActuators.length] = links[i];
        }
    }

    var menus = new Array();
    // build an array of menus
    for (i=0; i < lists.length; i++) {
        if (lists[i].className == "menu" || lists[i].className == "submenu") {
            menus[menus.length] = lists[i];
        }
    }

    // initialize actuators and menus (number should be the same)
    for (i=0; i < actuators.length; i++) {
        initializeMenu(menus[i].id, actuators[i].id);
    }
    
    // Begin custom code to remember last item clicked (with cookies)
    // add an onclick event to set a cookie on the non-actuators
    for (i=0; i < nonActuators.length; i++) {
        // retain any existing onclick handlers from menu-config.xml
        if (nonActuators[i].onclick) {
            nonActuators[i].onclick=function() {
                setCookie(itemCookie,this.href);
                if (eval(this.getAttribute("onclick")) == false) {
                    return false;
                }
            };
        } else {
            nonActuators[i].onclick=function() {
                setCookie(itemCookie,this.href);
            };
        }
    }
}


function openMenu(menuId) {
	//alert('menuId:-'+menuId+'-');
    var menu = document.getElementById(menuId);
    var actuatorId = menuId.substring(0, menuId.indexOf("Menu")) + "Actuator";
    var actuator = document.getElementById(actuatorId);
    if (menu != null) {
        var display = menu.style.display;
        menu.parentNode.style.backgroundImage = "url(img/folderopen.gif)";
        menu.style.display = (display == "block") ? "none" : "block";
    }
}
// gugg
/*
function openMenuCustom(menuId) {
	//alert('menuId:-'+menuId+'-');
    var menu = document.getElementById(menuId);
    var actuatorId = menuId.substring(0, menuId.indexOf("Menu")) + "Actuator";
    var actuator = document.getElementById(actuatorId);
    if (menu != null) {
        var display = menu.style.display;
        menu.parentNode.style.backgroundImage = "url(img/folderopen.gif)";
        menu.style.display = (display == "block") ? "none" : "block";
    }
}
*/

function expandMenus() {
    var menusToExpand = getCookie(menuCookie);    
    if (menusToExpand != null) {
        // if more than one menu has been menusToExpanded,
        // create an array of menusToExpanded menus
        if (menusToExpand.indexOf(",") != -1) {
            menuArray = menusToExpand.split(",");
            for (var i=0; i < menuArray.length; i++) {            	
                openMenu(menuArray[i]);
            }
         } else {
            openMenu(menusToExpand);
         }
    }
    /*
    var itemToHighlight = getCookie(itemCookie);
    var links = document.getElementsByTagName("a");
    // add an onclick event to set a cookie on the non-actuators
    for (i=0; i < links.length; i++) {
        if (links[i].href == itemToHighlight) {
            links[i].className += " highlight";
        }
    }
    */
}


// =========================================================================
//                          Cookie functions 
// =========================================================================
/* This function is used to set cookies */
function setCookie(name,value,expires,path,domain,secure) {
  document.cookie = name + "=" + escape (value) +
    ((expires) ? "; expires=" + expires.toGMTString() : "") +
    ((path) ? "; path=" + path : "") +
    ((domain) ? "; domain=" + domain : "") + ((secure) ? "; secure" : "");
}

/* This function is used to get cookies */
function getCookie(name) {	
	var prefix = name + "=" 
	var start = document.cookie.indexOf(prefix) 

	if (start==-1) {
		return null;
	}
	
	var end = document.cookie.indexOf(";", start+prefix.length) 
	if (end==-1) {
		end=document.cookie.length;
	}

	var value=document.cookie.substring(start+prefix.length, end)
	//alert(unescape(value));
	return unescape(value);
}

/* This function is used to delete cookies */
function deleteCookie(name,path,domain) {
  if (getCookie(name)) {
    document.cookie = name + "=" +
      ((path) ? "; path=" + path : "") +
      ((domain) ? "; domain=" + domain : "") +
      "; expires=Thu, 01-Jan-70 00:00:01 GMT";
  }
}

/* You can call initializeMenus() manually from your JSP if this doesn't work.
 * Just put the following code after the last menu tag.
 * <script type="text/javascript">
 *     initializeMenus();
 * </script>
 */
//window.onload = initializeMenus;

/* funzioni accessorie per aprire i rami dell'albero interessari*/
function openMenuQuesito(menusToExpand) {
	//alert('menusToExpand:'+menusToExpand);
	var uls = document.getElementsByTagName("ul");
	var menuArray=new Array();
	if (menusToExpand.indexOf(",") != -1) {
        menuArray = menusToExpand.split(",");
     } else {
    	 menuArray[0]=menusToExpand;
     }

//	var nodiTrattati=",";
//	alert(uls);
    for (i = 0; i < uls.length; i++) {
    	for(j=0;j<menuArray.length;j++){    		
    		var voceCorrente=menuArray[j];
    		
    		var quesito = uls[i].id.substring(0, uls[i].id.indexOf("Menu"));
    	//	alert(actuatorId);
    		if(quesito==voceCorrente){
    		//if(uls[i].id.indexOf(voceCorrente)!=-1){
    	    	var menuId=uls[i].id;
    	    	//alert("Stringa:"+menusToExpand+";Lunghezza:"+menuArray.length+", elemento corrente:"+j+" - "+voceCorrente);	
    	    	//alert("nodiTrattati:"+nodiTrattati);
    	    	var menu = document.getElementById(menuId);
    	        var actuatorId = menuId.substring(0, menuId.indexOf("Menu")) + "Actuator";
    	        var actuator = document.getElementById(actuatorId);        
                var subMenuId = menuId.substring(0, menuId.indexOf("Menu")) + "Menu";
                var subMenu = document.getElementById(subMenuId);        
    	   //     if (menu != null && nodiTrattati.indexOf(menuId+",")==-1) {
    	        
        	    if (menu != null) {	
    	            var display = menu.style.display;
    	            menu.parentNode.style.backgroundImage = "url(img/folderopen.gif)";
    	            menu.style.display = (display == "block") ? "none" : "block";
    	            /*
    	            if(j==(menuArray.length-1)){
    	            //	alert(voceCorrente);
    	            	actuator.style.fontWeight = 'bold';
    	            }
    	            */
    	            /* <a> actuator è precedente alla <a> del link e quindi non si può cambiare in bold 
    	            if(j==(menuArray.length-1)){
                        alert(voceCorrente);
                        //actuator.style.fontWeight = 'bold';
                        //menu.style.fontWeight = 'bold';
                        //actuator.setAttribute('style', 'font-weight: bold;');
                        subMenu.style.fontWeight = 'bold';
                    }
    	            */
    	            //var bkcolor=actuator.style.backgroundColor;
    	            //actuator.style.backgroundColor=(bkcolor == "yellow") ? "white" : "yellow";    	            
    	            //alert(actuatorId);
    	            //var links = document.getElementsByTagName("a");
    	            //alert(links);
    	         //   var itemToHighlight = getCookie(itemCookie);
    	        //    alert(itemToHighlight);
    	          //  nodiTrattati=nodiTrattati+menuId+",";
    	        }
    	    }   
    	}
    	
    	var itemToHighlight = getCookie(itemCookie);
    	/*
        var links = document.getElementsByTagName("a");
        // add an onclick event to set a cookie on the non-actuators
        for (i=0; i < links.length; i++) {
            if (links[i].href == itemToHighlight) {
                links[i].className += " highlight";
            }
        }
        */
        //alert(uls[i].id.indexOf(idQuesito));    	
    	 	       
   }
}   
function espandiTuttiQuesiti() {
	//alert('menusToExpand:'+menusToExpand);	
	var uls = document.getElementsByTagName("ul");
    for (i = 0; i < uls.length; i++) {
    		var menuId=uls[i].id;
    		
    		//var quesito = uls[i].id.substring(0, uls[i].id.indexOf("Menu"));
    		
    		var menu = uls[i];
        	    if (menu != null) {	
    	            var display = menu.style.display;
    	            if(menu.parentNode.style.backgroundImage=="url(img/folder.gif)"){
    	            	menu.parentNode.style.backgroundImage = "url(img/folderopen.gif)";
    	            }
    	            menu.style.display = "block";    	                	            
    	        }
    	    
    	   // }   
    	//}
    	
    	//var itemToHighlight = getCookie(itemCookie);    	 	       
   }    
}

function chiudiTuttiQuesiti() {
	var uls = document.getElementsByTagName("ul");
    for (i = 0; i < uls.length; i++) {
    	//if(i!=0){
    		var menuId=uls[i].id;
    		//alert(menuId);
    		//var quesito = uls[i].id.substring(0, uls[i].id.indexOf("Menu"));
    		
    		var menu = uls[i];
        	    if (menu != null && uls[i].id.indexOf("Menu")!=-1) {	
    	            var display = menu.style.display;
    	            if(menu.parentNode.style.backgroundImage == "url(img/folderopen.gif)"){
    	            	menu.parentNode.style.backgroundImage="url(img/folder.gif)"
    	            }
    	            menu.style.display = "none";    	                	            
    	        }
    	    
    	   // }   
    	//}
    	
        	 	       
   //}    
   }
}