E-card program with PHP and MySQL

Step 1: First make the following form: (Note: The php program is added to this form)
<Form method = "post" action = "mailtocard. php" name = "card" onSubmit = "return card_Validator (this)">
<Table width = "450" border = "0" cellspacing = "0" cellpadding = "0" align = "center">
<Tr>
& Lt; td valign = "top" width = "143" & gt;
<Input type = "radio" name = "inout" value = "newyear" checked>
</td>
& Lt; td width = "170" & gt;
<Input type = "radio" name = "inout" value = "newyear2_2">
</td>
& Lt; td width = "137" & gt;
<Input type = "radio" name = "inout" value = "newyear3_3">
</td>
</Tr>
<Tr>
<Td valign = "top" colspan = "3">
<Textarea name = "text" rows = "7" cols = "60" wrap = "VIRTUAL"> Hello friend:
</Textarea>
</Td>
</Tr>
<Tr>
<Td valign = "top" colspan = "3">
<Select name = "music">
<Option selected> -- card background music -- </option>
<Option value = "101marry. mid"> One Thousand and One Nights </option>
<Option value = "canyon. mid"> canyon </option>
</Select>
<Input onclick = playSound () type = button value = "try music">
</Td>
</Tr>
<Tr>
<Td valign = "top" colspan = "3"> </td>
</Tr>
<Tr>
<Td valign = "top" colspan = "3">
<Table width = "370" border = "0" cellspacing = "0" cellpadding = "0" align = "center" class = "p11">
<Tr>
& Lt; td width = "108" & gt;

<?

If (strlen ($ g_username)> 1)
{
// Determine whether to log on. If you have logged on to the system, you do not need to enter the name and Email.
$ Db = mysql_connect ("localhost", "root ","");
$ Result = mysql_db_query ("database name", "select email, http from database table name where username = '$ g_username '");

$ Row = mysql_fetch_array ($ result );
$ Bbs_email = $ row [email];

Echo "<div align = 'left'> Your name: </div>
</Td>
<Td width = 342>
$ G_username
<Input type = hidden name = username value = $ g_username>
</Td>
</Tr>
<Tr>
<Td width = 108>
<Div align = hidden> Your Email: </div>
</Td>
<Td width = 342>
$ Bbs_email
<Input type = hidden name = email value = $ bbs_email>

";
}
// If (strlen ($ g_username) <0)
Else // you need to enter your name and Email when determining that you have not logged on to else.
{
Echo "<div align = 'left'> Your name: </div>
</Td>
<Td width = '000000'>

<Input type = 'text' name = 'username'>
</Td>
</Tr>