Undefined index when PHP page for loaded

[Lauj]

I have a PHP form that lists all the activities in each month. When the form, eventPage.php, is first loaded, I received this error:

Notice: Undefined index: Month in F:\Foundation\alumni\evtSearchPage.php on line 290

because I have this:

$slMonth = $_GET["Month"];

in my PHP tag. Is there a way to set this $slMonth variable to a default value on the first time the page is load? If not, is there a way put a default value in form's drop down list. Below is my form code:

<form name="evtSearch" method="get" action="<? $_SERVER['PHP_SELF'] ?>">
<select name="Month" onChange=formHandler() size=1>
<option value="January">January</option>
<option value="February">February</option>
<option value="March">March</option>
<option value="April">April</option>
<option value="May">May</option>
<option value="June">June</option>
<option value="July">July</option>
<option value="August">August</option>
<option value="September">September</option>
<option value="November">November</option>
<option value="December">December</option>
</select>
</form>

Here's the code for the PHP tag:

<?PHP
//********* Variable Declaration *********************************************
$slMonth = $_GET["Month"];
//******Testing and Find Records***********************************************
echo "Month is: ".$slMonth."<br>";

	@ $db = mysql_connect("***", "***", "***");			
	if (!$db) {
		echo "Error: Could not connect to database. Please try again later.";
		exit;
		}
	mysql_select_db("alumni");

//*****************Generate Result*******************************************
$query = "select from event where Month like '%".$slMonth."%'";

	$result = mysql_query($query);

	$num_results = mysql_num_rows($result);		

		echo '<table width="548" border="0" cellspacing="-1" cellpadding="-1">';	
		for ($i = 0; $i < $num_results; $i++){
			if ($i == 0){
				$pt = $i;
				}
			if ($pt != $i){
				$bkgColor = "#CCFFFF";
				$pt += 2;
				}
			else{
				$bkgColor ="#CCCCCC";
				}
			$row = mysql_fetch_array($result);
			if($row["Day"] > 5 && $row["Day"] != 21 && $row["Day"] !=31){
				$dyHolder = $row["Day"]."th";
				}
			elseif($row["Day"] = 3){
				$dyHolder = $row["Day"]."rd";
				}
			elseif($row["Day"] = 3){
				$dyHolder = $row["Day"]."nd";
				}
			else{
				$dyHolder = $row["Day"]."st";
				}
			echo '<tr class="bodycopy">';
			echo '<td width="294" bgcolor="'.$bkgColor.'">';
			echo '<ul><li><b>'.$row['Month']."&nbsp;&nbsp;".$dyHolder.'</b> - '.$row["Event"].'</li></ul>';
			echo '</td>';
			echo '<td width="113" bgcolor="'.$bkgColor.'">'.$row["Place"].'</td>';
			echo '<td width="134" bgcolor="'.$bkgColor.'">'.$row["Location"].'</td>';
			echo '</td></tr>';
			}
			echo '</table>';
			echo "<br>";

?>

Many thanks for your help!

Lauj

[kevinsequeira]

if(isSet($GET["Month"])){
$slMonth = $GET["Month"];
}else{
$slMonth = "default";
}

reg
kevin

[Lauj]

Thank you very much, kevinsequeira, for your help. I'll give that a try.

Lauj