Advice on a jquery slider please?

Advice on a jquery slider please?

I have done this tutorial over four times today.
see nothing wrong, would a local expert please take  a  look and tell me where I am off?
Thank you!

  1. <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
    <html xmlns="http://www.w3.org/1999/xhtml">
    <head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <title>slideTest</title>

    <style type="text/css">

    .slider {
        height: 300px;
        width: 500px;
        overflow: hidden;
        background-image: url(slider/logoSlider.png);
        background-repeat: no-repeat;
        background-position: center center;
    }
    .slider img {
        height: 300px;
        width: 500px;
        display: none;
        margin: 0px;
        padding: 0px;   
    }

    </style>
    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js"> </script>
    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jqueryui/1.8.21/jquery-ui.min.js"> </script>
    <script type="text/javascript" >


    function slider (){
        $(".slider#1").show("fade",500);
        $(".slider#1").delay(5500).hide("slide",{direction: 'left'},500);
        var sc=$(".slider img").size();
        var count=2;
       
        setInterval (function(){
        $(".slider#"+count).show("slide",{direction: 'right'},500);
        $(".slider#"+count).delay(5500).hide("slide",{direction: 'left'},500);
        if (count == sc){
        count =1}else{
        count = count +1;
        }
        },6500);
    }

    </script>
    </head>

    <body onload="slider();">

    <div class="slider">
    <img id="1" src="slider/img01a.jpg" alt="rescueImg01" />
    <img id="2" src="slider/img01.jpg" />
    <img id="3"src="slider/img02.jpg" />
    <img id="4" src="slider/img03.jpg" />
    <img id="5"src="slider/img04.jpg" />
    </div>

    </body>
    </html>