updated for reading conference crossref xml and fixed typo

includes/doi.inc

@@ -37,6 +37,10 @@ function upei_roblib_ill_doi_get_data($form, $doi) {
 function upei_roblib_ill_populate_form_doi($crossref_xml, $form) {
   $full_title = $crossref_xml->getElementsbyTagName('full_title')
     ->item(0)->nodeValue;
+  if(empty($full_title)) {
+    $full_title = $crossref_xml->getElementsbyTagName('conference_name')
+      ->item(0)->nodeValue;
+  }
   $form['Title']['#value'] = $full_title;
   $form['ISSN']['#value'] = $crossref_xml->getElementsbyTagName('issn')
     ->item(0)->nodeValue;

includes/form.inc

@@ -38,7 +38,7 @@ function upei_roblib_ill_form($form, &$form_state) {
  */
 function upei_roblib_ill_form_validate($form, &$form_state) {
   if ($form_state['step'] == 'upei_roblib_ill_request_form' && empty($form_state['values']['doi']) && empty($form_state['values']['Title']) &&
-    empty($form_state['values']['ArtcleTitle'])
+    empty($form_state['values']['ArticleTitle'])
   ) {
     form_set_error('Title', t('One of "DOI", "Title" or "Article Title" values must be provided'));
   }