Merge pull request #1912 from Thraxis/Fix#1603

Fix#1603 - Manual add to Black / White list failed

gui/slick/js/blackwhite.js

@@ -52,21 +52,23 @@ $('#removeB').click(function() {
 });
 
 $('#addToWhite').click(function() {
-	var group = $('#addToPoolText').attr("value");
-	if(group == "") { return; }
-	$('#addToPoolText').attr("value", "");
-	var option = $("<option>");
-	option.attr("value",group);
+	var group = $('#addToPoolText').val();
+	if('' != group) {		
+		var option = $('<option>');
+		option.attr('value',group);
 		option.html(group);
 		option.appendTo('#white');
+		$('#addToPoolText').val('');		
+	}
 });
 
 $('#addToBlack').click(function() {
-	var group = $('#addToPoolText').attr("value");
-	if(group == "") { return; }
-	$('#addToPoolText').attr("value", "");
-	var option = $("<option>");
-	option.attr("value",group);
+	var group = $('#addToPoolText').val();
+	if('' != group) {
+		var option = $('<option>');
+		option.attr('value',group);
 		option.html(group);
 		option.appendTo('#black');
+		$('#addToPoolText').val('');
+	}
 });
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