private GUIStyle ListStyle( int selected )
{
GUIStyle _defaultStyle = new GUIStyle();
_defaultStyle.normal.textColor = Color.black;
_defaultStyle.hover.background = EditorGUIUtility.whiteTexture;
_defaultStyle.onHover.background = EditorGUIUtility.whiteTexture;
_defaultStyle.onHover.textColor = Color.blue;
_defaultStyle.padding.left = _defaultStyle.padding.right = _defaultStyle.padding.top = _defaultStyle.padding.bottom = 4;
_defaultStyle.contentOffset = new Vector2(20, 0);
GUIStyle _selectedStyle = new GUIStyle();
_selectedStyle.normal.background = EditorGUIUtility.whiteTexture;
return ( selected == selectedIndex ) ? _selectedStyle : _defaultStyle;
}