Display/Query data from myql database and create alternate background color using FOR LOOP

code to paste:

$con = mysql_connect("localhost","root","yourpassword");
if (!$con)
{
die('Could not connect: ' . mysql_error());
}

mysql_select_db("personalinfo", $con);

// Alternate background color of the table rows//
function row_color($x){
$background_a = "#4169E1";
$background_b = "#A0522D";

if ( $x%2 ) {
return $background_a;
} else {
return $background_b;
}
}

//connection to the database
$connection = mysql_connect("localhost","root","htciton");
$db = mysql_select_db("personalinfo");

$sql = "select * from table1"; // locate table
$result = mysql_query("$sql"); // display the data output from mysql database table1

// create table
echo "<table bgcolor=#FFFFFF border=0 cellpadding=3 cellspacing=3 align=center>\n";
echo "<tr bgcolor='#4169E1'>";
echo "<td align='center'><b>IDNO</b></td>";
echo "<td align='center'><b>LASTNAME</b></td>";
echo "<td align='center'><b>FIRSTNAME</b></td>";
echo "<td align='center'><b>AGE</b></td>";
echo "<td align='center'><b>SEX</b></td>";
echo "<td align='center'><b>CIVIL STATUS</b></td>";
echo "<td align='center'><b>ADDRESS</b></td>";
echo "</tr>";
// call the fields
for( $x = 0; $x < $row = mysql_fetch_array($result); $x ){
echo "<TR>\n"
."<TD bgcolor=".row_color($x).">".$row["idno"]."</TD>\n"
."<TD bgcolor=".row_color($x).">".$row["lastname"]."</TD>\n"
."<TD bgcolor=".row_color($x).">".$row["firstname"]."</TD>\n"
."<TD bgcolor=".row_color($x).">".$row["age"]."</TD>\n"
."<TD bgcolor=".row_color($x).">".$row["sex"]."</TD>\n"
."<TD bgcolor=".row_color($x).">".$row["civilstatus"]."</TD>\n"
."<TD bgcolor=".row_color($x).">".$row["address"]."</TD>\n"
."</TR>";
}
echo "</TABLE>";
mysql_close($con);
?>

output: