Hey guys im wondering how to get your news panel to show only one category for radipanel

heres the code im using to display the news it displays everything.

PHP Code:
<?php
    require_once( "../_inc/glob.php" );
?>
<!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" xml:lang="en">

    <head>

        <title>radiPanel News Archive</title>

        <style type="text/css" media="screen">

            }

            body, a, input, select, textarea {

                font-family: Verdana, Tahoma, Arial;
                font-size: 11px;
                color: #333;
                text-decoration: none;

            }

            a:hover {
            
                text-decoration: underline;
            
            }

            form {

                padding: 0;
                margin: 0;

            }

            .wrapper {

                width: auto;
                margin: auto;

            }

            .title {

                padding: 5px;    
                margin-bottom: 5px;
                font-size: 14px;
                font-weight: bold;
                background-color: #eee;
                color: #444;

            }

            .content {

                padding: auto;

            }

            .good, .bad {

                padding: 5px;    
                margin-bottom: 5px;

            }

            .good strong, .bad strong {

                font-size: 12px;
                font-weight: bold;

            }

            .good {

                background-color: #d9ffcf;
                border-color: #ade5a3;
                color: #1b801b;

            }

            .bad {

                    border-radius: 3px;
    color: #FFF;
    text-shadow: #AC4131 1px 1px;
    padding: 5px;
    margin-top: 20px;
    background: #e66c6c;
    height: auto;
    border: solid 1px #c05b5b;
    border-bottom: solid 2px #c05b5b;
    width: 95%;

            }

            input, select, textarea {

                border: 1px #e0e0e0 solid;
                border-bottom-width: 2px;
                padding: 3px;

            }

            input {

                width: auto;

            }

            input.button {

                width: auto;
                cursor: pointer;
                background: #eee;

            }

            select {

                width: 176px;

            }

            textarea {

                width: 288px;

            }

            label {

                display: block;
                padding: 3px;

            }
            
            .news_box {
    height: auto;
    width: 20%;
        float: left;
    background: url('../web/img/banner.png');
    background-repeat: no-repeat;
    background-position: center center;
    border-radius: 3px;
    padding: 4px;
        cursor: pointer;
        opacity: 1;
        transition: opacity 0.4s ease-in;
        text-align: center;
        color: #ffffff;
        border: 1px solid #3988A7;
        text-shadow: 1px 1px 0px #125b85;
        margin-bottom: 5px; 
}

    .news_box:hover {
        opacity: 0.8;
    }
    
    .news_content {
    float: right; 
    width: 74%; 
    height: 34px; 
    margin-bottom: 5px; padding: 3px 0 0 0;
    }
    

        </style>

    </head>

    <body>
    <div class="top"></div>
   <div class="mid">
    <div class="red"><img src="../voltertxtgen/text.php?t=CENTRAL%20INTELLIGENCE%20AGENCY%20NEWS&s=7&w=1" /></div>

     <div class="wrapper">

            

            

            <div class="content">

                <?php
                    
                    if( $_GET['cat'] ) {
                        
                        $cat = " WHERE category = '" . $core->clean( $_GET['cat'] ) . "1";
                        
                    }
                    
                    $query = $db->query( "SELECT * FROM news{$cat} ORDER BY stamp DESC" );
                    $num   = $db->num( $query );
                    
                    while( $array = $db->assoc( $query ) ) {
                    
                        $time = date( "jS F Y", $array['stamp'] );
                    
                ?>
                
                <div class="news_box" style="width: 20%; margin-bottom: 5px; padding: 10px;"><strong><?php echo $time; ?></strong></div>
                
                
                <div style="float: right; width: 75%; height: 34px; margin-bottom: 5px; padding: 3px 0 0 0;"> <a href="#?news" onclick="javascript:ajaxpage('../staff/_frontend/news/<?php echo $array['id']; ?>', 'content');"><?php echo $array['title']; ?></a><br /><?php echo $array['desc']; ?>
                </div>
                
                <?php
                    
                    }
                
                    if( $num == 0 ) {
                
                ?></div>
                <center>
</br>
                <div class="bad" style="margin-bottom: 0px;">
                
                    <strong>Sorry</strong>
                    <br />
                    There aren't any news items in this category!
                
                </div>
                </center>
                <?php
                
                    }
                
                ?>

            </div>

        </div>
            </div>
<div class="bot"></div>

    </body>

</html>