Iframe target problem

Fråga nr1
Tja, Jag vill länka en menyknapp som ett "tillbaka" commando.
fast undrar hur scriptet ser ut.

Fråga nr2
Startsidan "Indexsidan" har en table med 4 knappar "media" "osv" där innehållet öppnas i iframen under.

Så nu undrar jag ,kan man länka en menyknapp i ett annat index "index2.php" till "Indexsidan" med mediasidan redan öppnad i iframen under?

I "Index2" ser menyknapparna ut så här 2 olika sorter på samma knapp..

<table align="center" height="100%" cellspacing="0" cellpadding="0">
<tr valign="center">
<td>
<table style="width:880px;height:850px;">
<tr>

				\<td align="center" style="background-image:url('gfx/galleribg.jpg');background-position:top left;background-repeat:no-repeat;padding:0px 0px 0px 0px;"\>
					
					\<!-- BILDMENY START --\>
					\<table width="300" cellspacing="0" cellpadding="0"\>
						\<tr\>

\<td class="menyknapp"\>
\<a href="index.php" target="index2"\>\<img src="gfx/media.bmp" width=80 height=60\>\</td\>

<td class="menyknapp">
<img src="gfx/media-s.bmp" onmouseover="src='gfx/media-v.bmp'" onmouseout="src='gfx/media-s.bmp'" onclick="main.location.href='index.php'" width=95 height=48></td>

						\</tr\>

I startsidan "Indexsidan" ser menyknapparna ut så här..

<table align="center" height="100%" cellspacing="0" cellpadding="0">
<tr valign="center">
<td>
<table style="width:750px;height:965px;">
<tr>
<td align="center" style="background-image:url('gfx/bg5.jpg');background-position:top left;background-repeat:no-repeat;padding:0px 0px 0px 0px;">

					\<!-- BILDMENY START --\>
					\<table width="550" cellspacing="0" cellpadding="0"\>
						\<tr\>
							
						\</tr\>
						\<tr\>
							\<td class="menyknapp"\>
								\<img src="gfx/news-s.bmp" onmouseover="src='gfx/news-s.bmp'" onmouseout="src='gfx/news-s.bmp'" onclick="main.location.href='news.php'" width=83 height=48\>\</td\>
							\<td class="menyknapp"\>
								\<img src="gfx/band-s.bmp" onmouseover="src='gfx/band-s.bmp'" onmouseout="src='gfx/band-s.bmp'" onclick="main.location.href='band.php'" width=78 height=48\>\</td\>
							\<td class="menyknapp"\>
								
							\<td class="menyknapp"\>
								\<img src="gfx/shows-s.bmp" onmouseover="src='gfx/shows-s.bmp'" onmouseout="src='gfx/shows-s.bmp'" onclick="main.location.href='shows.php'" width=95 height=48\>\</td\>
							\<td class="menyknapp"\>
								\<img src="gfx/media-s.bmp" onmouseover="src='gfx/media-s.bmp'" onmouseout="src='gfx/media-s.bmp'" onclick="main.location.href='media.php'" width=95 height=48\>\</td\>
							\<td class="menyknapp"\>
								\<img src="gfx/photos-s.bmp" onmouseover="src='gfx/photos-s.bmp'" onmouseout="src='gfx/photos-s.bmp'" onclick="main.location.href='bilder.php'" width=95 height=48\>\</td\>

						\</tr\>
					\</table\>
					\<!--BILDMENY SLUT --\>
					
					\<iframe src="news.php" name="main" width="490" height="450" frameborder="0"\>
					\</iframe\>

om ni vill kan skriva ut hela koden om det behövs