img src isn't working in my header.php, trying to get a slideshow

hey guys, i’m trying to build a slideshow on my wordpress page using the header.php but none of the <img src=”url”> is working on my homepage at all?

this is below my navigation on my header.php page:

<!-- slideshow -->
<script type="text/javascript">

/***
    Simple jQuery Slideshow Script
    Released by Jon Raasch (jonraasch.com) under FreeBSD license: free to use or modify, not responsible for anything, etc.  Please link out to me if you like it :)
***/

function slideSwitch() {
    var $active = $('#slideshow IMG.active');

    if ( $active.length == 0 ) $active = $('#slideshow IMG:last');

    // use this to pull the images in the order they appear in the markup
    var $next =  $active.next().length ? $active.next()
        : $('#slideshow IMG:first');

    // uncomment the 3 lines below to pull the images in random order

    // var $sibs  = $active.siblings();
    // var rndNum = Math.floor(Math.random() * $sibs.length );
    // var $next  = $( $sibs[ rndNum ] );

    $active.addClass('last-active');

    $next.css({opacity: 0.0})
        .addClass('active')
        .animate({opacity: 1.0}, 1000, function() {
            $active.removeClass('active last-active');
        });
}

$(function() {
    setInterval( "slideSwitch()", 5000 );
});

</script>
<img src="slideshow1.png">
			<div id="frontpageslideshow">
    			 <img src="/themepics/slideshow1.png" alt="" class="active" />
    			 <img src="/themepics/slideshow/slideshow2.jpg" alt="" />
			</div><!-- end slideshow -->
<img src="nav-bg.png" style="height:100%;width:100%;">

and then here’s the matching css:

#frontpageslideshow {
    position:relative;
    height:322px;
    width:822px;
}

#frontpageslideshow IMG {
    position:absolute;
    top:0;
    left:0;
    z-index:8;
    opacity:0.0;
}

#frontpageslideshow IMG.active {
    z-index:10;
    opacity:1.0;
}

#frontpageslideshow IMG.last-active {
    z-index:9;
}

and my images are located here:
themes/twentyten-child/slideshow/

i tried to test images overall and i couldn’t even put in images anywhere on my header.php file at all.

i took the slideshow code from this tutorial because i’m going for a certain look..this one is very simple and all i need: https://jonraasch.com/blog/a-simple-jquery-slideshow

but does anyone know why even the img src tag isn’t working? i tried multiple images in different directories, even the same directory, and i even tried linking images outside of my site from the internet and the img src code still wasn’t working.

what is the deal?