Basic jQuery Horizontal Slider 2

HTML/CSS/jQuery setup for bare-bones horizontal slider, with graphic current-slide indicator.

by the_voder

HTML

<a href="" id="prevbutton" class="navbutton">Previous</a>

<div id="slidemask">
    <div id="slidecontainer">
        <div id="slide1" class="slides">Slide 1</div>
        <div id="slide2" class="slides">Slide 2</div>
        <div id="slide3" class="slides">Slide 3</div>
        <div id="slide4" class="slides">Slide 4</div>
    </div>
</div>

<a href="" id="nextbutton" class="navbutton">Next</a>
<br class="clearfloat" />

<div id="slideno">
    <div class="slideindicator"></div>
    <div class="slideindicator"></div>
    <div class="slideindicator"></div>
    <div class="slideindicator"></div>
</div>

CSS

.navbutton {
    display: block;
    padding: 8px;
    margin-top: 20px;
    float: left;
}
#slidemask {
    width: 200px;
    padding: 0;
    float: left;
    overflow: hidden;
    margin-top: 10px;
    border: 1px dashed #666;
}
#slidecontainer {
    position: relative;
    left: 0;
    margin: 0;
    padding 0;
    width: 800px;
}
.slides {
    width: 190px;
    height: 90px;
    margin: 0;
    padding: 5px;
    float: left;
}
.slides#slide1 {
    background-color: red;
}
.slides#slide2 {
    background-color: green;
}
.slides#slide3 {
    background-color: blue;
}
.slides#slide4 {
    background-color: yellow;
}
.clearfloat {
    clear: both;
}
#slideno {
   margin-left: 72px;
   margin-top: 5px;
}
.slideindicator {
    width: 10px;
    height: 10px;
    float: left;
    margin-right: 5px;
    border: 1px solid #666;
}
.slideindicatorcurrent {
    background-color: #ddd;
}

JavaScript

var slidewidth = 200;
var noslides = 4;
var currentslide = 0;

$(".slideindicator:first").addClass('slideindicatorcurrent');

var indicators = $('.slideindicator').toArray();

$('a#nextbutton').click(function () {
    if (currentslide < (noslides - 1)) {
        currentslide++;
        $(".slideindicator:eq("+currentslide+")").toggleClass('slideindicatorcurrent')
        $('#slidecontainer').animate({
            left: -currentslide * slidewidth
        }, 500);
    }
    return false;
});

$('a#prevbutton').click(function () {
    if (currentslide > 0) {                            
        $(".slideindicator:eq("+currentslide+")").toggleClass('slideindicatorcurrent')
        currentslide--;
        $('#slidecontainer').animate({
            left: -currentslide * slidewidth
        }, 500);
    }
    return false;
});