added form_button to form helper
diff --git a/system/helpers/form_helper.php b/system/helpers/form_helper.php
index 7c3b16f..db41cb5 100644
--- a/system/helpers/form_helper.php
+++ b/system/helpers/form_helper.php
@@ -387,6 +387,33 @@
// ------------------------------------------------------------------------
/**
+ * Form Button
+ *
+ * @access public
+ * @param mixed
+ * @param string
+ * @param string
+ * @return string
+ */
+if (! function_exists('form_button'))
+{
+ function form_button($data = '', $content = '', $extra = '')
+ {
+ $defaults = array('name' => (( ! is_array($data)) ? $data : ''), 'type' => 'submit');
+
+ if ( is_array($data) AND isset($data['content']))
+ {
+ $content = $data['content'];
+ unset($data['content']); // content is not an attribute
+ }
+
+ return "<button ".parse_form_attributes($data, $defaults).$extra.">".$content."</button>\n";
+ }
+}
+
+// ------------------------------------------------------------------------
+
+/**
* Form Label Tag
*
* @access public