SE_Layout: add alert

SE/se-lib/SE_Layout.php

@@ -74,4 +74,12 @@ class SE_Layout {
 		}
 	}
 
+	public static function alert($alertType, $msg) {
+		?>
+<div class="alert alert-<?php echo $alertType; ?>">
+	<?php echo $msg; ?>
+</div>
+		<?php
+	}
+
 }