function imagefond()
{

// document.getElementById('sommaire').style.backgroundImage='fond/fond1.jpg';
// document.getElementById('sommaire').style.background="background-image: url('fond/fond1.jpg')";

	aleatoire=Math.floor(Math.random()*10)
	switch(aleatoire){
		case 0:var img ="http://www.ebulobo.com/fond/fond1.jpg";break;
		case 1:var img ="http://www.ebulobo.com/fond/fond2.jpg";break;
		case 2:var img ="http://www.ebulobo.com/fond/fond3.jpg";break;
		case 3:var img ="http://www.ebulobo.com/fond/fond4.jpg";break;
		case 4:var img ="http://www.ebulobo.com/fond/fond5.jpg";break;
		case 5:var img ="http://www.ebulobo.com/fond/fond6.jpg";break;
		case 6:var img ="http://www.ebulobo.com/fond/fond7.jpg";break;
		case 7:var img ="http://www.ebulobo.com/fond/fond8.jpg";break;
		case 8:var img ="http://www.ebulobo.com/fond/fond9.jpg";break;
		case 9:var img ="http://www.ebulobo.com/fond/fond10.jpg";break;
	}
	
	// alert(aleatoire);
	
	var som = document.getElementById('sommaire');
	som.style.backgroundImage='url('+img+')';
	
	

}

function defil(){
	setInterval("imagefond();",2000);
}


function addLoadEvent(func)
{
   var oldonload = window.onload;
   if(typeof window.onload != 'function')
   {
      window.onload = func;
   }
   else
   {
      window.onload = function()
      {
         oldonload();
         func();
      }
   }
}

addLoadEvent(defil);