Implementing jQuery's shake effect with animate

Question

I\'ve been given a cut down subset of the jQuery lib one of the key features I\'m missing is the .effect functions. I do however have .animate. I w

Answer 1

This is not perfect, but functional

    // Example: $('#<% =ButtonTest.ClientID %>').myshake(3, 120, 3, false);
    jQuery.fn.myshake = function (steps, duration, amount, vertical) {
        var s = steps || 3;
        var d = duration || 120;
        var a = amount || 3;
        var v = vertical || false;
        this.css('position', 'relative');
        var cur = parseInt(this.css(v ? "top" : "left"), 10);
        if (isNaN(cur))
            cur = 0;

        var ds = d / s;

        if (v) {
            for (i = 0; i < s; i++)
                this.animate({ "top": cur + a + "px" }, ds).animate({ "top": cur - a + "px" }, ds);
            this.animate({ "top": cur }, 20);
        }
        else {
            for (i = 0; i < s; i++)
                this.animate({ "left": cur + a }, ds).animate({ "left": cur - a + "px" }, ds);
            this.animate({ "left": cur }, 20);
        }

        return this;
    }