Hola helthon ...
Si quieres que te muestre el resultado de tu busqueda en la BD de acuerdo a la opcion lo puedes hacer con capas y javascript... aqui te mando un ejemplo..
capas.php Código PHP:
<html>
<body>
<SCRIPT LANGUAGE="JavaScript">
<!--
function showdiv(pass) {
var divs = document.getElementsByTagName('div');
for(i=0;i<divs.length;i++){
if(divs[i].id.match(pass)){//if they are 'see' divs
if (document.getElementById) // DOM3 = IE5, NS6
divs[i].style.visibility="visible";// show/hide
else
if (document.layers) // Netscape 4
document.layers[divs[i]].display = 'visible';
else // IE 4
document.all.divs[i].visibility = 'visible';
} else {
if (document.getElementById)
divs[i].style.visibility="hidden";
else
if (document.layers) // Netscape 4
document.divs[i].visibility = 'hidden';
else // IE 4
document.all.divs[i].visibility = 'hidden';
}
}
}
//-->
</SCRIPT>
<table cellpadding=2 cellspacing=2 border=1 width=100% align=center>
<form name=CMSFORM method=post action="#">
<tr>
<table cellpadding=2 cellspacing=2 border=1 width=100% align=center>
<tr>
<td width=33% class=datos bgcolor=#cccccc>
<a href="javascript:showdiv('notes')" class=datos>Notes</a>
</td>
<td class=datos width=33% bgcolor=#cccccc>
<a href="javascript:showdiv('history')" class=datos>History</a>
</td>
<td class=datos width=34% bgcolor=#cccccc>
<a href="javascript:showdiv('document')" class=datos>Document</a>
</td>
</tr>
</table>
</tr>
<tr>
<div id="main" style="position: relative; background-color: #FFFFFF; left:0; border: 1px none #000000; visibility: visible; height: 100; width: 460">
<div id=notes style="position: absolute; background-color: #878756; border: 1px none #000000; left: 2; height: 100; width:500; overflow:auto; visibility: hidden">
<table cellpadding=2 cellspacing=2 border=1 width=100% align=center>
<tr>
<td align=right><b>Marca1:</b></td>
<td align=left><input type=text name=mark1></td>
<td align=right><b>Marca22:</b></td>
<td align=left><input type=text name=mark22></td>
</tr>
</table>
</div>
</tr>
<!-- *********** -->
<tr>
<div id="history" style="position: absolute; background-color: #AAAAAA; border: 1px none #000000; left: 2; height: 100; width:500; overflow:auto; visibility: hidden">
<table cellpadding=2 cellspacing=2 border=1 width=100% align=center>
<tr>
<td align=right><b>history</b></td>
<td align=left><input type=text name=mark1></td>
<td align=right><b>history22:</b></td>
<td align=left><input type=text name=mark22></td>
</tr>
</table>
</div>
</tr>
<!-- *********** -->
</tr>
<div id=document style="position: absolute; background-color: #FFFFFF; border: 1px none #000000; left: 2; height: 100; width:500; overflow:auto; visibility: hidden">
<table cellpadding=2 cellspacing=2 border=1 width=100% align=center>
<tr>
<td align=right><b>document</b></td>
<td align=left><input type=text name=mark1></td>
<td align=right><b>document22:</b></td>
<td align=left><input type=text name=mark22></td>
</tr>
</table>
</div>
</tr>
<!-- ************* -->
</div> <!-- div main -->
<form>
</table>
</body>
</html>
Solo tienes que hacer los cambios para que genere la busqueda en la BD...
Espero que te sirva....