Is there a better way to write this jQuery UI effect animation? I'm writing some code to perform some simple form validation and I would like to display error messages inside the actual relevant textarea by means of a text fadeout/fadein effect.

To achieve this I am using jQquery UI to do the following:


Step 1: Animate the color to match the background colour
Step 2: Modify the text to show the error message then fade it in
Step 3: Fade the error message out, change the text back to its
previous    content
Step 4: Fade the text back in 
Step 5: Finally, Focus the    textarea    and put the cursor at the
end


This works fine, however to do this I have had to nest a lot of anonymous function which is something I really don't like to do.

Is there a better way of achieving the same effect?

if (replyto == body) { 
    $textarea.prop("disabled", true).animate({ color: 'rgb(41, 41, 41)'},500, function(){
        $textarea.text('Please enter your reply here')
            .animate({ color: 'white'},500, function(){
                $textarea.delay('1000')
                    .animate({ color: 'rgb(41, 41, 41)'},500, function(){
                        $textarea.text(body)
                            .animate({ color: '#a7a7a7'},500)
                            .prop("disabled", false)
                            .focus()
                            .putCursorAtEnd();
                    });
            });
    });
    return false; 
}
You could create a function that will set up the animation of text or color and then just call it a few times to set up your animation:

$.fn.animateIt = function(color, text) {
    var that = $(this);
    if (text) {
        that.queue(function(next) {
            that.text(text);
            next();
        });
    }
    if (color) {
        that.animate({
            color: color
        }, 500);
    }
    return that;
};

$textarea.animateIt('rgb(41, 41, 41)')
    .animateIt('#FFF', 'Please enter your reply here')
    .delay('1000')
    .animateIt('rgb(41, 41, 41)')
    .animateIt('#a7a7a7', body)
    .queue(function(next) {
        $textarea.focus().putCursorAtEnd();
        next();
    });


Gets rid of the nested functions.

http://jsfiddle.net/petersendidit/LYsQM/1/