$(document).ready(function() {

	
	$("#np_open").click(function(){
		$("div#np_panel").slideDown("slow", changeColor);
		$("#np_tab").css('background-image', 'url('+Drupal.settings.basePath+'sites/all/themes/lektier/images/tab-down.gif)');

	});	
 
	$("#np_close").click(function(){
		$("div#np_panel").slideUp("slow", changeImage);
	});		
 
	$("#np_changeCourse button").click(function () {
		$("#np_changeCourse button").toggle();
	});
 
	changeImage = function(){
		$("#np_tab").css('background-image', 'url('+Drupal.settings.basePath+'sites/all/themes/lektier/images/tab-normal.gif)');
	}
	changeColor = function(){
		$("#np_close").css('background-color', '#585858');
	}
	
});