var Cielx;
var Ciely;

Oiseau = new Array();
PosOiseauX = new Array();
PosOiseauY = new Array();

DivsStatus   = new Array();



function InitOiseau()
  {
	Cielx=document.getElementById("Ciel").style.left;
	CielY=document.getElementById("Ciel").style.top;
	// Parse the DIVs to register them & add events callbacks
	Divs = document.getElementsByTagName("div");
	DivCount     = 0;
   
	for (i = 0; i < Divs.length; i++)
	    {
	     className = Divs[i].className;
	     if ( className == "Oiseau" )
	      {
		
	       DivID     = Divs[i].id;		
	       DivObject = document.getElementById(DivID);
	
	       Oiseau[DivCount]= DivID;
	       PosOiseauX[DivCount] = parseInt(DivObject.style.left);
	       PosOiseauY[DivCount] = parseInt(DivObject.style.top);
	       DivCount++;

	      }
	    }	
	OiseauxVole();
  }



function OiseauxVole()
{

for (i = 0; i < Oiseau.length; i++)
{
	DivObject = document.getElementById(Oiseau[i]);

	PosOiseauX[i]=PosOiseauX[i]-Math.round(Math.random()*4);

	if (PosOiseauX[i]<-50) 
	{
	PosOiseauX[i]=document.body.clientWidth+50;
	};

	PosOiseauY[i]=PosOiseauY[i]+Math.round(Math.random()*4-2);

	DivObject.style.left= PosOiseauX[i];
	DivObject.style.top= PosOiseauY[i];
}

setTimeout( "OiseauxVole()",50 );
}