//
// 20.10.2005
//



 var imgpath = '/images/main_nav/';


        function overbuttom(item){
                document[item].src=imgpath+item+"_a.gif" ;
        }


        function outbuttom(item){
                document[item].src=imgpath+item+".gif" ;
        }




// preload Images

        function preloadImages() 
        {
        if (document.images)
                {

                var preloaded = new Array(8);

				preloaded[1] = new Image();
				preloaded[1].src = imgpath + "home_a.gif";

				preloaded[2] = new Image();
				preloaded[2].src = imgpath + "feedback_a.gif";

				preloaded[3] = new Image();
				preloaded[3].src = imgpath + "sitemap_a.gif";

				preloaded[4] = new Image();
				preloaded[4].src = imgpath + "academy_a.gif";	

				preloaded[5] = new Image();
				preloaded[5].src = imgpath + "abitur_a.gif";	

				preloaded[6] = new Image();
				preloaded[6].src = imgpath + "faculty_a.gif";	

				preloaded[7] = new Image();
				preloaded[7].src = imgpath + "science_a.gif";	

				preloaded[8] = new Image();
				preloaded[8].src = imgpath + "students_a.gif";	

                }
        }