$(document).ready(function(){
	if($("div[id*='change_img_'] img").length > 0){
		var nmbrStrArr = new Array();
		for(i=1;i<4;i++){
			$("#change_img_"+i).css({
				'background':'transparent',
				'position':'relative'
			});
			var randomNmbr = Math.floor(Math.random() * $('#change_img_'+i+' img').length)+1;
			$('#change_img_'+i+'_'+randomNmbr).css({
				'display':''
			});
			nmbrStrArr[i-1] = randomNmbr;
		}
		doFade(nmbrStrArr, 1);
	}
});

function doFade(nmbrStr, containerId){
	var containerIdNext = containerId+1;
	if(containerIdNext > 3){
		containerIdNext = 1;
	}
	var randomNmbrNew = nmbrStr[containerId-1]+1;
	if(randomNmbrNew > $('#change_img_'+containerId+' img').length){
		randomNmbrNew = 1;
	}
	$('#change_img_'+containerId+'_'+randomNmbrNew).animate({
	    opacity: 0
	  }, 1, function() {
		  $('#change_img_'+containerId+'_'+randomNmbrNew).css({
			  'display':''
		  });
	  });
	$('#change_img_'+containerId+'_'+nmbrStr[containerId-1]).animate({
	    opacity: 0
	  }, 2500);
	$('#change_img_'+containerId+'_'+randomNmbrNew).animate({
	    opacity: 1.0
	  }, 2500, function() {
		  nmbrStr[containerId-1] = randomNmbrNew;
		  doFade(nmbrStr, containerIdNext);
	  });
};