Removing chrome specific code

www-client/surf/files/script.js

@@ -204,9 +204,9 @@
 	}
 
 	function setHints() {
-		var win_top = window.scrollY;
+		var win_top = window.pageYOffset;
 		var win_bottom = win_top + window.innerHeight;
-		var win_left = window.scrollX;
+		var win_left = window.pageXOffset;
 		var elems = document.body.querySelectorAll('a, input:not([type=hidden]), textarea, select, button, [onclick], [onmouseover], [for]');
 
 		var elements = [];