Déplacer les images...

Node.prototype.automovabiliser=function()
{
var movable;

if(this.nodeType==1) movable=this;
else
{
movable=document.createElement('vehicule');
this.parentNode.insertBefore(movable,this.nextSibling);
movable.appendChild(this);
}

function deplacer(mousemove)
{
movable.style.position='absolute';
movable.style.left=movable.x_delta+mousemove.clientX; 
movable.style.top=movable.y_delta+mousemove.clientY;
}

movable.addEventListener('mousedown',function(mousedown)
{
movable.style.zIndex=++document.topindex; 
movable.x_delta=movable.offsetLeft-mousedown.clientX;
movable.y_delta=movable.offsetTop-mousedown.clientY;
 
window.addEventListener('mousemove',deplacer,false);
window.addEventListener('mouseup',function(){window.removeEventListener('mousemove',deplacer,false)},false);
},false);

}

window.addEventListener('mousemove',deplacer,false);

window.addEventListener('mousemove',deplacer(mouse),false);

position:absolute;

position:fixed;