diff --git a/forms/DateField.php b/forms/DateField.php
index 63ff71f57..25c380e07 100755
--- a/forms/DateField.php
+++ b/forms/DateField.php
@@ -547,8 +547,8 @@ class DateField_View_JQuery {
 		if($this->getField()->getConfig('showcalendar')) {
 			Requirements::javascript(THIRDPARTY_DIR . '/jquery/jquery.js');
 			Requirements::javascript(SAPPHIRE_DIR . '/javascript/jquery_improvements.js');	
-			Requirements::css('http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.1/themes/smoothness/jquery-ui.css');
-			Requirements::javascript('http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.1/jquery-ui.min.js');
+			Requirements::css(Director::protocol().'ajax.googleapis.com/ajax/libs/jqueryui/1.8.1/themes/smoothness/jquery-ui.css');
+			Requirements::javascript(Director::protocol().'ajax.googleapis.com/ajax/libs/jqueryui/1.8.1/jquery-ui.min.js');
 			
 			// Include language files (if required)
 			$lang = $this->getLang();
@@ -648,4 +648,4 @@ class DateField_View_JQuery {
 		return preg_replace($patterns, $replacements, $format);
 	}
 }
-?>
\ No newline at end of file
+?>
diff --git a/forms/FileIFrameField.php b/forms/FileIFrameField.php
index b25235025..d66e0a66b 100755
--- a/forms/FileIFrameField.php
+++ b/forms/FileIFrameField.php
@@ -51,8 +51,8 @@ class FileIFrameField extends FileField {
 	public function Field() {
 		Requirements::add_i18n_javascript(SAPPHIRE_DIR . '/javascript/lang');
 		Requirements::javascript(THIRDPARTY_DIR . '/jquery/jquery.js');
-		Requirements::css('http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.1/themes/base/jquery-ui.css');
-		Requirements::javascript('http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.1/jquery-ui.min.js');
+		Requirements::css(Director::protocol().'ajax.googleapis.com/ajax/libs/jqueryui/1.8.1/themes/base/jquery-ui.css');
+		Requirements::javascript(Director::protocol().'ajax.googleapis.com/ajax/libs/jqueryui/1.8.1/jquery-ui.min.js');
 		
 		
 		if($this->form->getRecord() && $this->form->getRecord()->exists()) {