var num_image=1;

function prev(num_image,cible){
    if(num_image>1){
        document.getElementById('img'+num_image).style.display='none';
        num_image--;
        document.getElementById('img'+num_image).style.display='block';
    }else{
        window.location=cible;
    }
    return num_image;
}

function next(num_image,num_max,cible){
    if(num_image<num_max){
        document.getElementById('img'+num_image).style.display='none';
        num_image++;
        document.getElementById('img'+num_image).style.display='block';
    }else{
        window.location=cible;
    }
    return num_image;
}

function pos(num_image,pos){
    document.getElementById('img'+num_image).style.display='none';
    num_image=pos;
    document.getElementById('img'+num_image).style.display='block';
    return num_image;
}
function plus(){
    var pos=document.getElementById("div").offsetLeft;
    for(var i=0;i<100;i++){
        document.getElementById("div").style.marginLeft=(pos+i)+"px";
    }
}
function moins(){
    var pos=document.getElementById("div").offsetLeft;
    for(var i=0;i<100;i++){
        document.getElementById("div").style.marginLeft=(pos-i)+"px";
    }
}
function scroll_over(event){
    var obj_referent=event.target.parentNode.id=="container"?event.target.parentNode:event.target.parentNode.parentNode;
    var obj_adeplacer=event.target.id=="div"?event.target:event.target.parentNode;
    posX=event.clientX;
    posY=event.clientY;
    if(obj_adeplacer.id=="div"){
        var plus=obj_adeplacer.offsetLeft - obj_referent.offsetLeft + 10;
        var moins=obj_adeplacer.offsetLeft - obj_referent.offsetLeft - 10;
        if(event.clientX<obj_referent.offsetLeft+290&&obj_referent.offsetLeft>obj_adeplacer.offsetLeft){
            obj_adeplacer.style.marginLeft=plus+"px";
        }else if(event.clientX<obj_referent.offsetLeft+780&&event.clientX>obj_referent.offsetLeft+490){
            obj_adeplacer.style.marginLeft=moins+"px";
        }
    }
}

function click(event){
    var cible=event.target.getAttributeNS(null , "transform");
    alert(cible);
}

function scroll_out(event){
    
}
function addEvent(obj,event,fct)
{
    if( obj.attachEvent)
        obj.attachEvent('on' + event,fct);
    else
        obj.addEventListener(event,fct,true);
}