problemas para buscar

[jegggf]

buenas, tengo un error que no puedo ubicar, agradezco ayuda.

formulario:

<form method="post" action="buscar.php" name= "formulario" >

Buscar:<input type="text" name="busca"> <br><br>

<input type="submit" value="buscar"> <br><br>

</form>

conexion:

<?php

$hostname = "juanmegasoft.db.6881035.hostedresource.com";
$username = "juanmegasoft";
$dbname = "juanmegasoft";

$password = "juan@Megasoft1";

$db = mysql_connect($hostname, $username, $password) OR DIE ("no funca, tratá más tarde");
$db_selected = mysql_select_db($dbname);


?>


php:



<?php
include ("conecta.php");

global $db_selected;
global $db;

$usertable = "prueba1";
$yourfield = "objetos";

$var0 = "";
$var1 = "";
$var2 = "";
//echo "aqui";

if (isset($_POST["buscar"]))
{
//echo "aqui";

$buscar = $_POST["buscar"];
$busca = $_POST["busca"];
if($buscar == "buscar")
{
// echo "aqui";
$sql = "SELECT * FROM prueba1 WHERE objetos = '$busca'";
$cs = mysql_query($sql,$db);
echo $sql;
while ($result = mysql_fetch_array($cs))
{
$var0 =$result[0];
$var1 =$result[1];
$var2 =$result[2];

}
}

}


?>



formulario destino:




<form method="post" action="ingreso.php" name= "formulario" >

Objeto:<input type="text" name="objetos" value= "<?php echo $var0?>"> <br><br>
Valor:<input type="text" name="valor" value= "<?php echo $var1?>"> <br><br>
Peso:<input type="text" name="peso" value= "<?php echo $var2?>"> <br><br>

<input type="submit" value="insertar"> <br><br>

</form>