var fadeIn = 8500;
var fadeOut = 8500;
var timeOut = 2000;

$(document).ready(function(){
	if($('#change_img img').length > 0){
		$('#change_img').css({
			'background':'transparent',
			'position':'relative'
		});
		var randomNmbr = Math.floor(Math.random() * $('#change_img img').length)+1;
		$('#change_img_'+randomNmbr).css({
			'display':''
		});
		window.setTimeout('doFade('+randomNmbr+')', timeOut);
	}
});

function doFade(nmbrStr){
	var randomNmbrNew = nmbrStr+1;
	if(randomNmbrNew > $('#change_img img').length){
		randomNmbrNew = 1;
	}
	$('#change_img_'+randomNmbrNew).animate({
	    opacity: 0
	  }, 1, function() {
		  $('#change_img_'+randomNmbrNew).css({
			  'display':''
		  });
	  });
	$('#change_img_'+nmbrStr).animate({
	    opacity: 0
	  }, fadeOut);
	$('#change_img_'+randomNmbrNew).animate({
	    opacity: 1.0
	  }, fadeIn, function() {
		  window.setTimeout('doFade('+randomNmbrNew+')', timeOut);
	  });
};