diff --git a/script.js b/script.js
index 715d5ea..8c3da34 100644
--- a/script.js
+++ b/script.js
@@ -1,59 +1,65 @@
 /**
  * CC BY SA 3.0
  * https://stackoverflow.com/a/819455/3451846
  */
 function resizeIFrameToFitContent( iFrame ) {
 	if( iFrame ) {
 
 		var $iframe = $(iFrame);
 		$iframe.height( $iframe.contents().height() );
 		$iframe.width(  $iframe.contents().width()  );
 
 		// show
 		if( ! this.executedFirstTime ) {
 			$( '#full-block' ).hide( 'slow' );
 			this.executedFirstTime = true;
 
 			/* scroll half of this page */
 			setInterval( scrollHalf, SEQUENCE.interval );
 		}
 	}
 }
 
 function expandIframes() {
 
 	// or, to resize all iframes:
 	var iframes = document.querySelectorAll('iframe');
 	for( var i = 0; i < iframes.length; i++ ) {
 		resizeIFrameToFitContent( iframes[i] );
 	}
 }
 
 function loadNextPage() {
 	window.location = SEQUENCE.nextURL;
 }
 
 function scrollHalf() {
 	var fullHeight = $(document).height();
 	var h = $(window).height();
 	var halfWindow = h / 1.8;
 	var currentPosition = $(document).scrollTop();
 	var nextPosition = currentPosition + halfWindow;
+	var fixGiova = 5; // px
 
-	if( currentPosition + h >= fullHeight ) {
+	console.log( "document height" , fullHeight ); // 1558
+	console.log( "current", currentPosition ); // 510
+	console.log( "window height", h ); // 1047
+
+	// GDS has 510 + 1047 = 1557 instead of 1558
+	if( currentPosition + h + fixGiova >= fullHeight ) {
 		loadNextPage();
 	}
 
 	$( '#full-block' ).show( 'slow', function() {
 
 		window.scrollTo( 0, nextPosition );
 
 		$( '#full-block' ).hide( 'slow' );
 	} );
 }
 
 $( function() {
 
 	/* adapt the page to the real dimensions */
 	setInterval( expandIframes, 400 );
 } );