Question

I would like to assign a cookie to a variable…

e.g.
var aVariable = $.cookie("moo");

I am using the jQuery cookie functions – do I need to set the cookie AND set the variable at the same time or something?

Help pretty please!

^.^

My Code:

function goBackToPosition() {
    var xPos = $.cookie("yourPositionX");
    var yPos = $.cookie("yourPositionY");

        console.log(xPos);
        console.log(yPos);

    if (xPos) {
        alert("xpos!");
        $(this).animate({
            top:    yPos,
            left:   xPos
    }, 400, function(){
            $.cookie("yourPositionX", null);
            $.cookie("yourPositionY", null);
    });

    }
}

I get the following error: a.ownerDocument is undefined

Answer 1

Your syntax is wrong here:

$(this).css(function() {
    top:    yPos,
    left:   xPos
}, 400, function() {
    $.cookie("yourPositionX", null);
    $.cookie("yourPositionY", null);
});

Perhaps you meant:

$(this).css({
    top:    yPos,
    left:   xPos
}).fadeIn(400, function(){
    $.cookie("yourPositionX", null);
    $.cookie("yourPositionY", null);
});

Or:

$(this).animate({
    top:    yPos,
    left:   xPos
}, 400, function(){
    $.cookie("yourPositionX", null);
    $.cookie("yourPositionY", null);
});

In response to your update / new issue:

$(this) will not work in the scope of goBackToPosition as this references that function, rather than an element. You will have to change $(this) to $('selector') to get it to work.

Or use goBackToPosition.call($('selector')) if you would like to keep using this.
The call function alters the value of this when the called function executes, a similar function is apply.