Adding the ninesixty theme's function ns().

template.php

@@ -474,3 +474,43 @@ function dewey_render_node_body($nid) {
   return $node->body;
 }
 
+/**
+ * Contextually adds 960 Grid System classes.
+ *
+ * The first parameter passed is the *default class*. All other parameters must
+ * be set in pairs like so: "$variable, 3". The variable can be anything available
+ * within a template file and the integer is the width set for the adjacent box
+ * containing that variable.
+ *
+ *  class="<?php print ns('grid-16', $var_a, 6); ?>"
+ *
+ * If $var_a contains data, the next parameter (integer) will be subtracted from
+ * the default class. See the README.txt file.
+ */
+function ns() {
+  $args = func_get_args();
+  $default = array_shift($args);
+  // Get the type of class, i.e., 'grid', 'pull', 'push', etc.
+  // Also get the default unit for the type to be procesed and returned.
+  list($type, $return_unit) = explode('-', $default);
+
+  // Process the conditions.
+  $flip_states = array('var' => 'int', 'int' => 'var');
+  $state = 'var';
+  foreach ($args as $arg) {
+    if ($state == 'var') {
+      $var_state = !empty($arg);
+    }
+    elseif ($var_state) {
+      $return_unit = $return_unit - $arg;
+    }
+    $state = $flip_states[$state];
+  }
+
+  $output = '';
+  // Anything below a value of 1 is not needed.
+  if ($return_unit > 0) {
+    $output = $type . '-' . $return_unit;
+  }
+  return $output;
+}