bug with animate using vals from array?

Hi there,

I'm testing an un-live potential web design of a book/library with bookshelf(menu), page turning, etc (all animated with jquery). And with a hidden chest inside a book that opens when clicked, 3-15'sh images/links pop-out and slowly rotate in a pseudo-circle. I'm echoing the coordinates for each circle-point to move to - confirming they are calculated correctly - yet the first image/link does not follow the "y" coordinate its given (and moves around somewhat randomly). Therefore I believe it is a bug with .animate(). All other images/links rotate as expected. I'm hardly a prof programmer but I don't think I have any logic errors, closing loops properly, etc.

1st time posting here so hopefully my code snippet will paste in as follows... (any ideas, thoughts or confirming this as a bug would be appreciated):

/* chest */
var coords = new Array();
var use_alt = 0;

	function getCirclePoints(centerX, centerY, radius, segments){
		var totalPoints = new Array();
		for(var i = 0; i < segments; i++){
			/* (adjusting plots for positioning) */
			x = Math.round(centerX+radius*Math.sin(i*2*Math.PI/segments))-60;
			y = Math.round(centerY+radius*Math.cos(i*2*Math.PI/segments))-70;
			totalPoints.push({'x':x,'y':y});
	 	}
		return totalPoints;
	}
	/* reindex array for subsequent positions */
	function reindex_coords() {
		if (use_alt == 1) {
			var my_count = coords.length;
		} else {
			var my_count = $("#content #chest_icons a").length;
		}
		for (i=2; i <= my_count; i++) {
				my_x = coords[0]["x"];
				my_y = coords[0]["y"];
				coords.shift();
				coords.push({'x':my_x,'y':my_y});
		};
		icons_rotation();
	}
	function icons_rotation() {
		/* test if rotation needs to stop */
		if ($("#content #chest_icons").css("z-index") == "2000") {
			/* variable speed for rotation */
			ispeed = $("#content #chest_icons a").length;
			ispeed = Math.round(80000/ispeed);
			if (ispeed > 20000) {ispeed = 20000;}
			if (ispeed < 10000) {ispeed = 10000;}
			ispeed = 4000; //for quicker testing
			/* set new position */
			var i = 0;
			$("#content #chest_icons a").each(function() {
				$(this).stop(true, false).animate({"top" : coords[i]["y"], "left" : coords[i]["x"]}, ispeed, "linear");
				/* debug */
				var this_id = $(this).find("img").attr("alt");
				$("#debug").append(i+'x='+coords[i]["x"]+', '+i+'y='+coords[i]["y"]+', '+this_id+'<br />');
				if (use_alt == 1) {
					i++;
				};
				i++;
			});
			/* fake delay b4 getting next coords */
			var temp_speed = ispeed/* + 100*/;
			$("#chest_icons").stop(true, false).animate({"top" : "0"}, temp_speed, function() {
				reindex_coords();
			});
		};
	}
	
  	$("#content #chest").live("click", function(event) {
		if (test_anim == true) {
			return false;
		} else {
			test_anim = true;
			$("#content #chest_icons").css("z-index", "2000");
			$("#content #chest_closed").stop(true, false).animate({"opacity" : "0"}, 1000);
			$("#content #chest_open").stop(true, false).animate({"opacity" : "1"}, 1000, function() {
				
				var img_count = 0;
				img_count = $("#content #chest_icons a").length;
				var my_radius = 25 * img_count;
				if ( my_radius > 230 ) { my_radius = 230; };
				if ( my_radius < 140 ) { my_radius = 140; };

				coords.length = 0;
				if (img_count > 2 && img_count < 10) {
					use_alt = 1;
					var dbl_count = (img_count * 2);
					coords = getCirclePoints(220, 220, my_radius, dbl_count);
				} else {
					use_alt = 0;
					coords = getCirclePoints(220, 220, my_radius, img_count);
				};
				var i = 0;
				/* set initial position */
				$("#content #chest_icons a").each(function() {
					$(this).stop(true, false).animate({"top" : coords[i]["y"], "left" : coords[i]["x"]}, 1000);
					if (use_alt == 1) {
						i++;
					};
					i++;
				});
				/* fake delay b4 calling function (slightly longer to ensure correct positioning */
				if (img_count > 2) {
					$("#chest_icons").animate({"left" : "0"}, 1100, function() {
						reindex_coords();
					});
				};
			});
			test_anim = false;
		};
	});
	$("#content #chest_icons a").live("click", function(event) {
		window.location = $(this).attr("href");
		return false;
	});
	$("#content #chest_icons").live("click", function(event) {
		cleanup_chest_page();

	});