diff --git a/index.html b/index.html
index 6dc2f7e..add41d4 100644
--- a/index.html
+++ b/index.html
@@ -106,10 +106,14 @@
 				index = Math.max(0,index);
 				$textarea[0].value = value.substr(0,index);
 				$textarea[1].value = '';
+				$btns[2].disabled=false;
+				$btns[3].disabled=false;
 			}
 
 			$buttons[2].onclick = function(){
 				$textarea[1].value = $textarea[0].value = '';
+				$btns[2].disabled=false;
+				$btns[3].disabled=false;
 			}
 		</script>
 	</body>