private void Init()
{
HBox locbar = new HBox();
locbar.y = 2;
Style.SetConstraints(locbar, Constraint.LR, 3);
Label l = new Label();
l.text = "URL:";
locbar.addChild(l);
urlInput = new TextInput();
urlInput.percentWidth = 100;
urlInput.keyDown += urlInput_keyDown;
locbar.addChild(urlInput);
addChild(locbar);
tabs = new TabNavigator();
Style.SetConstraints(tabs, Constraint.Top, 28);
Style.SetConstraints(tabs, Constraint.LRB, 3);
addChild(tabs);
}