/*
Author   : bieler batiste
Company  : doSimple : http://www.dosimple.ch
send me a mail for more informations : faden@PASDEPOURRIELaltern.org - remove ( PASDEPOURRIEL )

Short javascript function to create and handle a CSS navigation menu

Copyright (C) 2004  Bieler Batiste

This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/

// the timeout for the menu
var timeout = 200;
// le nombre de li max dans le menu
var nbLi = 200;
// Pour cacher le select qui permet de choisir le type de la recherche (car interférence des menus déroulant sous ie6 avec la recherche)
var cacherLeSelectDeLaRecherche = true;

// not very clean but simple
// the function can be run in the HTML for faster display
// window.onload=initMenu;

// creat timeout variables for list item
// it's for avoid some warning with IE

// this fonction apply the CSS style and the event
function initMenu(idUlMenu)
{

	/*
	for( var i = 0; i < nbLi; i++ ){
		eval("timeout"+idUlMenu+"_li_"+i + " = false;");
	}
	*/

    // a test to avoid some browser like IE4, Opera 6, and IE Mac
    if ( browser.isDOM1 
    && !( browser.isMac && browser.isIE ) 
    && !( browser.isOpera && browser.versionMajor < 7 )
    && !( browser.isIE && browser.versionMajor < 5 ) )
    {
        // get some element
       	//var menu = document.getElementById('menu'); // the root element
        //var lis = menu.getElementsByTagName('li'); // all the li
        var menu = document.getElementById(idUlMenu);  // the root element
        if(menu){
	       	var lis = menu.getElementsByTagName('li'); // all the li
	       	
	       	
	       	   // i am searching for ul element in li element
	        for ( var i=0; i<lis.length; i++ ){
	            // is there a ul element ?
	            if ( lis.item(i).getElementsByTagName('ul').length > 0 ){ 
	            	if(''+lis.item(i).id+''!=''){
	            		eval("timeout"+lis.item(i).id+ " = false;");
	            	}else{
	            		eval("timeout"+idUlMenu+"_li_"+i + " = false;");
	            	}
	            }
	       	}
	        
	        // i am searching for ul element in li element
	        for ( var i=0; i<lis.length; i++ )
	        {
	            // is there a ul element ?
	            if ( lis.item(i).getElementsByTagName('ul').length > 0 )
	            {        
	                // improve IE key navigation
	                if ( browser.isIE )
	                {
	                    addAnEvent(lis.item(i),'keyup',show);
	                }
	                // link events to list item
	                addAnEvent(lis.item(i),'mouseover',show);
	                addAnEvent(lis.item(i),'mouseout',timeoutHide);
	                addAnEvent(lis.item(i),'blur',timeoutHide);
	                addAnEvent(lis.item(i),'focus',show);
	                
	                // add an id to list item
	                if(''+lis.item(i).id+''!=''){
	            		//lis.item(i).setAttribute( 'id', idUlMenu+"_li_"+i );
	            	}else{
	            		lis.item(i).setAttribute( 'id', idUlMenu+"_li_"+i );
	            	}
	            }
	        }
		}
    }
}

function addAnEvent( target, eventName, functionName )
{
    // apply the method to IE
    if ( browser.isIE )
    {
        //attachEvent dont work properly with this
        eval('target.on'+eventName+'=functionName');
    }
    // apply the method to DOM compliant browsers
    else
    {
        target.addEventListener( eventName , functionName , true ); // true is important for Opera7
    }
}
    
// hide the first ul element of the current element
function timeoutHide()
{
    // start the timeout
    /*
    if(this.className.indexOf('select')!=-1){
    	this.className = "select";
    }else{
    	this.className = "";
    }
    */
    
    var nomClassCss = this.className;
    if(nomClassCss.indexOf('selected')!=-1){
    	var reg = new RegExp("selected","g")
    	nomClassCss = nomClassCss.replace(reg,"");
    }
    this.className = nomClassCss;
    
    showSelectBugIe6();  
   	eval( "timeout" + this.id + " = window.setTimeout('hideUlUnder( \"" + this.id + "\" )', " + timeout + " );");
}

// hide the ul elements under the element identified by id
function hideUlUnder( id )
{   
    document.getElementById(id).getElementsByTagName('ul')[0].style['visibility'] = 'hidden';
    
}

// show the first ul element found under this element
function show()
{
    // show the sub menu
    this.getElementsByTagName('ul')[0].style['visibility'] = 'visible';
    /*
    if(this.className.indexOf('select')!=-1){
    	this.className = "select selected";
    }else{
    	this.className = "selected";
    }
    */
    if(''+this.className+''!=''){
    	this.className = this.className + " selected";
    }else{
    	this.className = "selected";
    }

    hideSelectBugIe6();
    
    var currentNode=this;
    while(currentNode)
    {
            if( currentNode.nodeName=='LI')
            {
                currentNode.getElementsByTagName('a')[0].className = 'linkOver';
            }
            currentNode=currentNode.parentNode;
    }
    // clear the timeout
  	eval ( "clearTimeout( timeout"+ this.id +");" );
    hideAllOthersUls( this );
}

function hideSelectBugIe6(){
	if(cacherLeSelectDeLaRecherche){
		if(navigator.appVersion.indexOf("MSIE 6")!=-1){
			var select = document.getElementsByTagName("SELECT");
			for (a=0;a<select.length;a++){
				select[a].style.visibility="hidden";
			}
		}
	}
}
function showSelectBugIe6(){
	if(cacherLeSelectDeLaRecherche){
		if(navigator.appVersion.indexOf("MSIE 6")!=-1){
			var select = document.getElementsByTagName("SELECT");
			for (a=0;a<select.length;a++){
				select[a].style.visibility="";
			}
		}
	}
}

// hide all ul on the same level of  this list item
function hideAllOthersUls( currentLi )
{
    var lis = currentLi.parentNode;
    for ( var i=0; i<lis.childNodes.length; i++ )
    {
        if ( lis.childNodes[i].nodeName=='LI' && lis.childNodes[i].id != currentLi.id )
        {
            hideUlUnderLi( lis.childNodes[i] );
        }
    }
}

// hide all the ul wich are in the li element
function hideUlUnderLi( li )
{
    var as = li.getElementsByTagName('a');
    for ( var i=0; i<as.length; i++ )
    {
        as.item(i).className="";
    }
    var uls = li.getElementsByTagName('ul');
    for ( var i=0; i<uls.length; i++ )
    {
        uls.item(i).style['visibility'] = 'hidden';
    }
} 

function initMenuVertical(idUlMenu, afficherSelectionSeulement, nomParametreSelection)
{
    // a test to avoid some browser like IE4, Opera 6, and IE Mac
    if ( browser.isDOM1 
    && !( browser.isMac && browser.isIE ) 
    && !( browser.isOpera && browser.versionMajor < 7 )
    && !( browser.isIE && browser.versionMajor < 5 ) )
    {
        // get some element
        var menu = document.getElementById(idUlMenu); // the root element
        
        if(afficherSelectionSeulement){
        	//Récupération de l'id de la catégorie selectionnée
			window.querystring = { 
			    vars : null, 
			    parse : function() { 
			      var q = {}; 
			      var query = window.location.search.substring(1);  
			      var vars = query.split("&");  
			      for (var i = 0; i < vars.length; i++) {  
			          var pair = vars[i].split("=");  
			          q[pair[0]] = pair[1]; 
			      } 
			      this.vars = q; 
			    } 
			}		
			querystring.parse(); // on initialise l'objet 
			var parametre = querystring.vars[nomParametreSelection];
			if(parametre!=null && parametre!=""){
				var elemSelection = document.getElementById(idUlMenu+"_"+parametre);
				if(elemSelection!=null){
		
					//On affiche les enfants de l'élément selectionné s'il en a
					var ulElemSelection = elemSelection.getElementsByTagName('ul')[0];
					if(ulElemSelection!=null){
						ulElemSelection.style['display'] = 'block';
					}
					
					
					var fini = false;
					var elemCourant = elemSelection;
					//On remonte l'arborescence à partir de l'élément selectionné
					while(!fini){
						var parent = elemCourant.parentNode;
						if(parent.nodeName == 'UL'){
							//On en profite pour afficher ce bloc
							parent.style['display'] = 'block';
						}
						var grandParent = parent.parentNode;
						if(grandParent.nodeName!= 'LI' && grandParent.nodeName!= 'UL'){
							//Parent est donc le ul qui définit le menu, et donc elemCourant est une catégorie de premier niveau
							fini = true;
						}else{
							elemCourant = parent;
						}
					}
					var elemPremierNiveau = elemCourant;
					
					//On remplace le menu par un nouveau menu qui ne contient que les sous catégories de la catégorie de premier niveau si elle en a
					var newMenu = document.createElement("ul");
					newMenu.setAttribute("id", menu.getAttribute("id"));
					var ulPremierNiveau = elemPremierNiveau.getElementsByTagName('ul')[0];
					if(ulPremierNiveau!=null){
						var categoriesSecondNiveau = ulPremierNiveau.childNodes;
						for ( var i=0; i<categoriesSecondNiveau.length; i++ ){
							var categSecondNiveau = categoriesSecondNiveau[i];
							if(categSecondNiveau.nodeName == 'LI'){
								newMenu.appendChild(categSecondNiveau);
							}
						}
						var parentMenu = menu.parentNode;
						parentMenu.replaceChild(newMenu, menu);
						
						menu = newMenu;
					}
				}
			}else{
				menu.style['display'] = 'block';
			}
		}	
			
		//récupération de tous les li
        var lis = menu.getElementsByTagName('li'); // all the li
              
        // i am searching for ul element in li element
        for ( var i=0; i<lis.length; i++ )
        {
            // is there a ul element ?
            //if ( lis.item(i).getElementsByTagName('ul').length > 0 ){        
                // improve IE key navigation
                if ( browser.isIE )
                {
                   // addAnEvent(lis.item(i),'keyup',showVertical);
                }
                // link events to list item
               // addAnEvent(lis.item(i),'click',showVertical);
				//addAnEvent(lis.item(i),'command',showVertical);
                
                // add an id to list item
                //lis.item(i).setAttribute( 'id', "li"+i );
           // }
        }
        
        //Afficher le menu
        menu.style['display'] = 'block';
		
    }
}



// show the first ul element found under this element
function showVertical()
{
    // show the sub menu
	if(this.getElementsByTagName('ul')[0]){
		this.getElementsByTagName('ul')[0].style['display'] = 'block';
	}
	var currentNode=this;
	while(currentNode)
	{
			if( currentNode.nodeName=='LI')
			{
				currentNode.getElementsByTagName('a')[0].className = 'linkOver';
			}
			currentNode=currentNode.parentNode;
	}
	hideAllOthersUls( this );
}