iframes help!!

[Ryya]

RESOLVED: needed to add name="mainframe" as well as id="mainframe" to the <iframe></iframe>. No clue why. 

Experience: Somewhere in the middle
Example: www[.]straycreations[.]com

Please help, I am using 1 main iframe for content, with targeted div links for the navigation. This works perfect in google chrome, but not in FF or IE. I have been web designing for a number of years, but recently began picking it back up and have no clue what i did wrong.

Navigation DIV Links:

<div id="DivHome"> <a href="arcade.php" target="mainframe"><strong><fontcolor="white">Home</font></strong></a></div>
<div id="DivConstruction"><a href="under_construction.php" target="mainframe"><strong><fontcolor="white">Construction</font></strong></a></div> 

Iframe:

<iframe scrolling="no" SRC="arcade.php" marginwidth="0" marginheight="0" frameborder="0" vspace="0" hspace="0" width="100%" height="100%" id="mainframe"></iframe> 

CSS:

<LINK REL=StyleSheet HREF="style.css" TYPE="text/css">

#DivHome {
    position:absolute;
    left:42px;
    top:113px;
    width:39px;
    height:21px;
    font-size: 16pt;
    font-family:Tahoma, Geneva, sans-serif;
}
a {
    font-size: 14px;
    color: #FFF;
}
a:visited {
    color: #000;
    text-decoration: none;
}
a:hover {
    color: #0F0;
    text-decoration: underline;
}
a:active {
    color: #000;
    text-decoration: none;
}
a:link {
    color: #FFF;
    text-decoration: none;
}
body,td,th {
    color: #000;
}



#DivConstruction {
    position:absolute;
    left:91px;
    top:113px;
    width:50px;
    height:21px;
    font-size: 16pt;
    font-family:Tahoma, Geneva, sans-serif;
}
a {
    font-size: 14px;
    color: #FFF;
}
a:visited {
    color: #000;
    text-decoration: none;
}
a:hover {
    color: #0F0;
    text-decoration: underline;
}
a:active {
    color: #000;
    text-decoration: none;
}
a:link {
    color: #FFF;
    text-decoration: none;
}
body,td,th {
    color: #000;
    text-align: left;
}