Href changing depending on what image

JavaScript
1

hello
i have this code that tags between three images in an certain amount of time
and this works fine

<script language = "Javascript">
<?php $count_im=1;
 $req=mysql_query("select * from banner");
	while ($res=mysql_fetch_array($req)){ ?>
var image<?php echo $count_im; ?> =new Image()
image<?php echo $count_im; ?>.src="<?php echo $res["banner"]; ?>"
<?php $count_im++;
}?>
</script>

<div class="banner">
	<p class="banner_image">
		<img src="banner/12.jpg" name="slide" width="290px">
		<script>
			<!--
			//variable that will increment through the images
			var step=1
			function slideit(){
			//if browser does not support the image object, exit.
			if (!document.images)
			return
			document.images.slide.src=eval("image"+step+".src")
			if (step<3)
			step++
			else
			step=1
			//call function "slideit()" every ... seconds
			setTimeout("slideit()",10000)
			}
			slideit()
			//-->
		</script>
	</p>
</div>

and i want it also to tag between hrefs too, so tried the following but didnt work

<?php $count_im=1;
 $req=mysql_query("select * from banner");
	while ($res=mysql_fetch_array($req)){ ?>
var image<?php echo $count_im; ?> =new Image()
image<?php echo $count_im; ?>.src="<?php echo $res["banner"]; ?>"

var link<?php echo $count_im; ?> =new String()
link<?php echo $count_im; ?>.href="<?php echo $res["banner_title"]; ?>"

<?php $count_im++;
}?>

<div class="banner">
	<p class="banner_image">
		<a href="" target="_blank" name="links">
		<img src="banner/12.12" name="slide" width="290px"></a>
		<script>
			<!--
			//variable that will increment through the images
			var step=1
			function slideit(){
			//if browser does not support the image object, exit.
			if (!document.images)
			return
			document.images.slide.src=eval("image"+step+".src")
			document.a.links.href=eval("link"+step+".src")
			if (step<3)
			step++
			else
			step=1
			//call function "slideit()" every ... seconds
			setTimeout("slideit()",10000)
			}
			slideit()
			//-->
		</script>
	</p>
</div>

anyone can help???