function preloadImages(arr)
{
	var d=document;
	if(d.images)
	{
		if(!d.pictures)
			d.pictures=new Array();
		var i, j = d.pictures.length, a = arr, b, c;
		
		// images supplémentaires à charger
		if ( window.imagesToLoad === undefined )
			c = Array();
		else	c = imagesToLoad;
		if ( window.imagesFestival === undefined )
			b = Array();
		else	b = imagesFestival;
		
		for( i = 0 ; i < a.length ; i++ )
		if ( a[i].indexOf("#") != 0 )
		{
			d.pictures[j]=new Image;
			d.pictures[j++].src = a[i];
		}
		for( i = 0 ; i < b.length ; i++ )
		if ( b[i].indexOf("#") != 0 )
		{
			d.pictures[j]=new Image;
			d.pictures[j++].src = b[i];
		}
		for( i = 0 ; i < c.length ; i++ )
		if ( c[i].indexOf("#") != 0 )
		{
			d.pictures[j]=new Image;
			d.pictures[j++].src = c[i];
		}
	}
}