DRY code for sorting

app/assets/javascripts/sort_header.js

@@ -0,0 +1,7 @@
+$(document).on('click', '.list-remove', function(){
+	$('#delete_all').submit();
+});
+
+$(document).on('click', '#check_all', function(){
+  $('.checkbox_in_list').attr("checked", this.checked);
+});