Added getArg

_inc.php

+<?php
+
+function getArg($variable){
+    if(isset($_POST[$variable])){
+        return $_POST[$variable];
+    }
+    else if(isset($_GET[$variable])){
+        return $_GET[$variable];
+    }
+    else{
+        return false;
+    }
+}
\ No newline at end of file