Alternating TR colors in search results?

[Anon]

Know how when you do a search on a site, and most of the time the table that list's the search results has alternating table row colors? How exactly is that done? Here's what I've got so far...

$display_block = "
ID:$id</a><BR>
Part: $part<BR>
Size: $size <BR>
Location: $location <BR>
";

[Anon]

Here's how I do it:

if ($myrowr = mysql_fetch_array($resultr)) {
$color1 = "#ffffff";
$color2 = "#d0d0d0";
$rowcolor = $color1;
do {
printf("<tr>\n<td valign=top bgcolor=%s><a href=\"/xxxx.phtml\">%s</a></td><td></td><td valign=top class=tdata bgcolor=%s>%s</td></tr>\n", $rowcolor, $myrowr[headline], $rowcolor, $myrowr[desc]);
if ($rowcolor == $color1) {$rowcolor = $color2;}
elseif ($rowcolor == $color2) {$rowcolor = $color1;}
} while ($myrowr = mysql_fetch_array($resultr));

[kparker]

You really don't like having that duplicate call to mysql_fetch_array(), do you?
Why not say it like this:

$colors = array( "#ffffff", "#d0d0d0" );
$idx = 0;

while ($myrowr = mysql_fetch_array($resultr))
&nbsp;&nbsp;{
&nbsp;&nbsp;printf("<tr>\n<td valign=top bgcolor=%s>... ", $colors[$idx], ... );
&nbsp;&nbsp;$idx = ! $idx;
&nbsp;&nbsp;}

[Anon]

$num = numbder of rows
$i =0;

table header here

while ($i < $num) {

echo ($i % 2) ? "<tr onMouseOver=\"mOvr(this,'#000066');\" onMouseOut=\"mOut(this,'#000099');\" bgcolor=\"#000099\">\n" : "<tr onMouseOver=\"mOvr(this,'#000066');\" onMouseOut=\"mOut(this,'#0000aa');\" bgcolor=\"#0000aa\">\n";

$i++;
}

table footer here