<h3 align='left'>Material Stock</h3>
<center>
<?php

$tbl = 'materials';
$medid = $_REQUEST["medid"];

if ($_POST["submit"] == 'SAVE') {
	
	$medname = $_POST["medname"];
	$unitrate = $_POST["unitrate"];
	$qtyreceipt = $_POST["qtyreceipt"];
	$qtyinhand = $_POST["qtyinhand"];
	$qtycritical = $_POST["qtycritical"];

	if (mysql_num_rows(mysql_query("select * from $tbl where med_id=$medid"))) {
		mysql_query("update $tbl set med_name='$medname',unit_rate=$unitrate,
		qty_receipt=$qtyreceipt,qty_inhand=$qtyinhand,qty_critical=$qtycritical,login_id='$user' where med_id=$medid");
	} else if ($medname) {
		mysql_query("insert into $tbl(med_name,unit_rate,qty_receipt,qty_inhand,qty_critical,login_id) 
		values('$medname',$unitrate,$qtyreceipt,$qtyinhand,$qtycritical,'$user')");
	}

}

if ($_GET["del"] == 1) {
	mysql_query("delete from $tbl where med_id=$medid");
}

?>
<font color='red'><b>Pink lines indicate out of stock materials</b></font> 
<table border='1' width='90%'>
<tr><th>Sr</th><th>Item Name</th><th>Unit Rate</th><th>Received Qty</th><th>Used Qty</th><th>Inhand Qty</th><th>Critical Level</th><td align='center'>Action</td></tr>

<?php

if (!$medid) {
	echo "<tr><td>+</td>
	<td><input type='text' name='medname' value='' size='30'></td>
	<td align='center'>Rs. <input type='text' name='unitrate' value='0.00' size='6'></td>
	<td align='center'><input type='text' name='qtyreceipt' value='0' size='5'></td>
	<td align='center'><input type='text' name='qtyused' value='0' size='5'></td>
	<td align='center'><input type='text' name='qtyinhand' value='0' size='5'></td>
	<td align='center'><input type='text' name='qtycritical' value='0' size='5'></td>
	<td align='center'><input type='submit' name='submit' value='SAVE'></td></tr>";     
} else {
	echo "<tr><td colspan='8'><a href='?pg=$pg&medid='>+</a></td></tr>";
}

$rs = mysql_query("select * from $tbl order by med_name");
while ($o = mysql_fetch_object($rs)) {
	$i++;
        echo "<tr bgcolor='".($o->qty_inhand == $o->qty_critical ? 'pink' : '')."'>
	<td><a name='$i'href='?pg=$pg&medid=$o->med_id#$i'>$i</a></td>";
	if ($medid == $o->med_id) {
        	echo "<td><input type='hidden' name='medid' value='$o->med_id'>
		<input type='text' name='medname' value='$o->med_name' size='30'></td>
        	<td align='center'><input type='text' name='unitrate' value='$o->unit_rate' size='6'></td>
        	<td align='center'><input type='text' name='qtyused' value='$o->qty_used' size='5' readonly></td>
        	<td align='center'><input type='text' name='qtyreceipt' value='$o->qty_receipt' size='5'></td>
        	<td align='center'><input type='text' name='qtyinhand' value='$o->qty_inhand' size='5'></td>
        	<td align='center'><input type='text' name='qtycritical' value='$o->qty_critical' size='5'></td>
        	<td align='center'><input type='submit' name='submit' value='SAVE'> 
		<a href='?pg=$pg&del=1&medid=$medid'>x</a></td>";     
	} else {
 		echo "<td>$o->med_name</td>
		<td align='right'>Rs. $o->unit_rate</td>
		<td align='right'>$o->qty_receipt</td>
		<td align='right'>$o->qty_used</td>	
		<td align='right'>$o->qty_inhand</td>
		<td align='right'>$o->qty_critical</td>";	
	}
	echo "</tr>";	
}

?>

</table>
</center>