// the timeout for the menu
var timeout = 100;

// 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('partenaires'); // 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='partenaires';
        
        // 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),'click',show);
                addAnEvent(lis.item(i),'mouseover',show_delay);
                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 );
            }
        }
    }
}

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 + "\" ); clearTimeout(visible_timeout); visible = false;', " + timeout + " );");
}

// hide the ul elements under the element identified by id
function hideUlUnder( id ) {
	if ( document.getElementById(id).getElementsByTagName('ul')[0].className == "partenaires" ) {
		document.getElementById(id).getElementsByTagName('ul')[0].style['display'] = 'none';
	}
}

// show the first ul element found under this element
function show_delay(){
	var obj = this;
	
	if ( visible ) show(obj.id)
	else visible_timeout = setTimeout( "show('" + obj.id + "');", 2000);
}
var visible = false;
var visible_timeout;
function show(obj_id)
{
	var obj = document.getElementById(obj_id);
	if ( obj == undefined ) {
		obj = this;
	}
	visible = true;
	
    // show the sub menu
    obj.getElementsByTagName('ul')[0].style['display'] = 'block';
	
    var currentNode=obj;
    while(currentNode)
    {
            if( currentNode.nodeName=='LI')
            {
//                currentNode.getElementsByTagName('a')[0].className = 'linkOver';
            }
            currentNode=currentNode.parentNode;
    }
    // clear the timeout
    eval ( "clearTimeout( timeout"+ obj.id +");" );
    hideAllOthersUls( obj );
}
/*
function show()
{
	var obj = this;
	
    // show the sub menu
    obj.getElementsByTagName('ul')[0].style['display'] = 'block';
	
    var currentNode=obj;
    while(currentNode)
    {
            if( currentNode.nodeName=='LI')
            {
//                currentNode.getElementsByTagName('a')[0].className = 'linkOver';
            }
            currentNode=currentNode.parentNode;
    }
    // clear the timeout
    eval ( "clearTimeout( timeout"+ obj.id +");" );
    hideAllOthersUls( obj );
}
*/

// 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 )
        {
            if ( lis.childNodes[i].className == "partenaires" ) 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++ )
    {
		if ( as.item(i).className == "partenaires" ) as.item(i).className="";
    }
    var uls = li.getElementsByTagName('ul');
    for ( var i=0; i<uls.length; i++ )
    {
        if ( uls.item(i).className == "partenaires" ) uls.item(i).style['display'] = 'none';
    }
}

function hideMenu() {

	var menu = document.getElementById('partenaires');
	
    var uls = menu.getElementsByTagName('ul');
    for ( var i=0; i<uls.length; i++ )
    {
        if ( uls.item(i).className == "partenaires" ) uls.item(i).style['display'] = 'none';
    }
}