function CSSetStylePos(s,d,p) {
        if (CSIsW3CDOM)d==0?document.getElementById(s).style.left=p+"px":document.getElementById(s).style.top=p+"px";
        else if(IsIE())(d==0)?CSIEStyl(s).posLeft=p:CSIEStyl(s).posTop=p;
        else (d==0)?CSNSStyl(s).left=p:CSNSStyl(s).top=p;
}
function CSGetStylePos(s,d) {
        if (CSIsW3CDOM){CSIDOM();return parseInt((d==0)?document.getElementById(s).style.left:document.getElementById(s).style.top);
}
        else if (IsIE()) {CSIEWinInit();return(d==0)?CSIEStyl(s).posLeft:CSIEStyl(s).posTop;}
        else {return (d==0)?CSNSStyl(s).left:CSNSStyl(s).top;}
}


function getStyleObject(objectId) {
    // cross-browser function to get an object's style object given its id
    if(document.getElementById && document.getElementById(objectId)) {
	// W3C DOM
	return document.getElementById(objectId).style;
    } else if (document.all && document.all(objectId)) {
	// MSIE 4 DOM
	return document.all(objectId).style;
    } else if (document.layers && document.layers[objectId]) {
	// NN 4 DOM.. note: this won't find nested layers
	return document.layers[objectId];
    } else {
	return false;
    }
} // getStyleObject

function changeObjectVisibility(objectId, newVisibility) {
    // get a reference to the cross-browser style object and make sure the object exists
    var styleObject = getStyleObject(objectId);
    if(styleObject) {
	styleObject.visibility = newVisibility;
	return true;
    } else {
	// we couldn't find the object, so we can't change its visibility
	return false;
    }
} // changeObjectVisibility

function moveObject(objectId, newXCoordinate, newYCoordinate) {
    // get a reference to the cross-browser style object and make sure the object exists
    var styleObject = getStyleObject(objectId);
    if(styleObject) {
	styleObject.left = newXCoordinate;
	styleObject.top = newYCoordinate;
	return true;
    } else {
	// we couldn't find the object, so we can't very well move it
	return false;
    }
} // moveObject

function showMenu(menuNumber, eventObj) {
    //    alert(eventObj);
    hideAllMenus();
        placeTousLesCalques();
    var menuId = 'menu' + menuNumber;
    if(changeObjectVisibility(menuId, 'visible')) {
        var menuTitle = getStyleObject('menuTitle' + menuNumber);
        menuTitle.backgroundColor = '#6692CE';
        eventObj.cancelBubble = true;
        return true;
    } else {
        return false;
    }
}


function hideAllMenus() {
    //changeObjectVisibility('covering', 'hidden');

}

document.onclick = hideAllMenus;
window.onresize = placeTousLesCalques;

function placeCalque(ar,defX){
        var nPosX;
        for (var i = 0; i < ar.length; i++){
           if (document.body.clientWidth >= 787){
                        nPosX  = defX + (document.body.clientWidth - 787) / 2
                }
                else {
                        nPosX = defX;
                }

                CSSetStylePos(ar[i],0,nPosX);

        }
}

function placeTousLesCalques(){

        placeCalque(Array('invisible-button-home'),6);
        placeCalque(Array('invisible-button-english'),737);
        
}