/*
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.
*/

// the timeout for the menu
var timeout = 1000;

// 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
for( var i = 0; i < 100; i++ ) {
	eval("var timeoutli" + i + " = false;");
}

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

		// change the class name of the menu,
		// it's usefull for compatibility with old browser
		menu.className='menu';
		// 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
				lis.item(i).setAttribute( 'id', "li"+i );
				lis.item(i).getElementsByTagName('a')[0].className = 'menuIndicateur';
			}
		}
	}
}

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
	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';
	// clear the timeout
	eval ( "clearTimeout( timeout"+ this.id +");" );
	hideAllOthersUls( this );
}

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

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

// mouseover imagess for accan site
// not part of the original js file
function SwitchImg() {
	var rem, keep=0, store, obj, switcher=new Array, history=document.Data;
	for (rem=0; rem < (SwitchImg.arguments.length-2); rem+=3) {
		store = SwitchImg.arguments[(navigator.appName == 'Netscape')?rem:rem+1];
		if ((store.indexOf('document.layers[')==0 && document.layers==null) ||
		(store.indexOf('document.all[')==0 && document.all==null))
		store = 'document'+store.substring(store.lastIndexOf('.'),store.length);
		obj = eval(store);
		if (obj != null) {
			switcher[keep++] = obj;
			switcher[keep++] = (history==null || history[keep-1]!=obj)?obj.src:history[keep];
			obj.src = SwitchImg.arguments[rem+2];
		}
	}
	document.Data = switcher;
}
function RestoreImg() {
	if (document.Data != null)
	for (var rem=0; rem<(document.Data.length-1); rem+=2)
	document.Data[rem].src=document.Data[rem+1];
}