function divh() {
			var divobj = document.getElementById("contentframe");
			var divh = divobj.offsetHeight;
		}
		
		function home() {
		  document.getElementById('aboutme').style.display='none';
		  document.getElementById('shooting').style.display='none';
  		  document.getElementById('impressum').style.display='none';

		  document.getElementById('back_gallery').style.display='none';
  		  document.getElementById('home2').style.display='none';

		  document.getElementById('button_aboutme').style.display='block';
		  document.getElementById('button_shadow1').style.display='block';
		  document.getElementById('button_shooting').style.display='block';
		  document.getElementById('button_shadow2').style.display='block';
		  document.getElementById('button_gallery').style.display='block';
		  document.getElementById('button_shadow3').style.display='block';
		  document.getElementById('button_contact').style.display='block';
		  document.getElementById('button_shadow4').style.display='block';
		  document.getElementById('button_impressum').style.display='block';
		  document.getElementById('button_shadow5').style.display='block';

		  document.getElementById('gallery_sub').style.display='none';
		  document.getElementById('reise_sub').style.display='none';
		  
		  
		 }


		function aboutme() {
		 if(document.getElementById('aboutme').style.display=='none') {
		  document.getElementById('aboutme').style.display='block';
  		  document.getElementById('home2').style.display='block';
		  
		  document.getElementById('button_aboutme').style.display='none';
		  document.getElementById('button_shadow1').style.display='none';
		  document.getElementById('button_shooting').style.display='none';
		  document.getElementById('button_shadow2').style.display='none';
		  document.getElementById('button_gallery').style.display='none';
		  document.getElementById('button_shadow3').style.display='none';
		  document.getElementById('button_contact').style.display='none';
		  document.getElementById('button_shadow4').style.display='none';
		  document.getElementById('button_impressum').style.display='none';
		  document.getElementById('button_shadow5').style.display='none';
		  
		  document.getElementById('gallery_sub').style.display='none';
		  document.getElementById('reise_sub').style.display='none';
		  
		 }
		}
		
		function shooting() {
		 if(document.getElementById('shooting').style.display=='none') {
		  document.getElementById('shooting').style.display='block';
   		  document.getElementById('home2').style.display='block';
		  
		  document.getElementById('button_aboutme').style.display='none';
		  document.getElementById('button_shadow1').style.display='none';
		  document.getElementById('button_shooting').style.display='none';
		  document.getElementById('button_shadow2').style.display='none';
		  document.getElementById('button_gallery').style.display='none';
		  document.getElementById('button_shadow3').style.display='none';
		  document.getElementById('button_contact').style.display='none';
		  document.getElementById('button_shadow4').style.display='none';
		  document.getElementById('button_impressum').style.display='none';
		  document.getElementById('button_shadow5').style.display='none';
		  
		  document.getElementById('gallery_sub').style.display='none';
		  document.getElementById('reise_sub').style.display='none';
		  
		  
		 }
		}
		
		function impressum() {
		 if(document.getElementById('impressum').style.display=='none') {
		  document.getElementById('impressum').style.display='block';
  		  document.getElementById('home2').style.display='block';
		  
		  document.getElementById('button_aboutme').style.display='none';
		  document.getElementById('button_shadow1').style.display='none';
		  document.getElementById('button_shooting').style.display='none';
		  document.getElementById('button_shadow2').style.display='none';
		  document.getElementById('button_gallery').style.display='none';
		  document.getElementById('button_shadow3').style.display='none';
		  document.getElementById('button_contact').style.display='none';
		  document.getElementById('button_shadow4').style.display='none';
		  document.getElementById('button_impressum').style.display='none';
		  document.getElementById('button_shadow5').style.display='none';
		  
		  document.getElementById('gallery_sub').style.display='none';
		  document.getElementById('reise_sub').style.display='none';
		  
		 }
		}
		
				
		function gallery_akt() {
		 if(document.getElementById('gallery_akt').style.display=='none') {
		  document.getElementById('back_gallery').style.display='block';
		  document.getElementById('gallery_akt').style.display='block';		  		  
 		  }
		 }

		function gallery_exp() {
		 if(document.getElementById('gallery_exp').style.display=='none') {
		  document.getElementById('back_gallery').style.display='block';
		  document.getElementById('gallery_exp').style.display='block';		  
 		  }
		 }

		function gallery_port() {
		 if(document.getElementById('gallery_port').style.display=='none') {
		  document.getElementById('back_gallery').style.display='block';
		  document.getElementById('gallery_port').style.display='block';		  
 		  }
		 }

		function gallery_tiere() {
		 if(document.getElementById('gallery_tiere').style.display=='none') {
		  document.getElementById('back_gallery').style.display='block';
		  document.getElementById('gallery_tiere').style.display='block';		  
 		  }
		 }

		function gallery_indo() {
		 if(document.getElementById('gallery_indo').style.display=='none') {
		  document.getElementById('back_gallery').style.display='block';
		  document.getElementById('gallery_indo').style.display='block';		  
 		  }
		 }
		function gallery_icehotel() {
		 if(document.getElementById('gallery_icehotel').style.display=='none') {
		  document.getElementById('back_gallery').style.display='block';
		  document.getElementById('gallery_icehotel').style.display='block';		  
 		  }
		 }


		function gallery_arch() {
		 if(document.getElementById('gallery_arch').style.display=='none') {
		  document.getElementById('back_gallery').style.display='block';
		  document.getElementById('gallery_arch').style.display='block';		  
 		  }
		 }
		 
		function back_gallery() {
		  document.getElementById('back_gallery').style.display='none';
		  document.getElementById('gallery_akt').style.display='none';
		  document.getElementById('gallery_port').style.display='none';
		  document.getElementById('gallery_exp').style.display='none';
		  document.getElementById('gallery_tiere').style.display='none';
		  document.getElementById('gallery_arch').style.display='none';
		  document.getElementById('gallery_indo').style.display='none';
		  document.getElementById('gallery_icehotel').style.display='none';

		}
			
		 
		 function gallery_sub() {
		 if(document.getElementById('gallery_sub').style.display=='none') {
		  document.getElementById('gallery_sub').style.display='block'; 
		 }
		 else {
		 	document.getElementById('gallery_sub').style.display='none'; 
		 	document.getElementById('reise_sub').style.display='none'; 
		}
		} 
		
		function reise_sub() {
		 if(document.getElementById('reise_sub').style.display=='none') {
		  document.getElementById('reise_sub').style.display='block'; 
		 }
		 else { 
		 	document.getElementById('reise_sub').style.display='none'; 
			}
		} 

		
		function anfahrt(){
			myleft=20;
			mytop=20;
			settings="width=300,height=250,top=" + mytop + ",left=" + myleft + ",scrollbars=yes,location=no,directories=no,status=yes,menubar=no,toolbar=no,resizable=yes,dependent=no";
			win=window.open("http://www.map24.com/?q=m24cpnlFR7MvZGgXt3BxiKTB9orDAsoWu497vxab6CGYjcHBM3V4mCwDrQxj7lDcj_xx7XslK2HhM3nNKdZGcJLVgOkP/mP6IugMUkqwHhvYwdeAUpm32A4DmRQ5X5cOuanyG47J9foA","anfahrt",settings);
			win.focus();
		}
		
		function contact(){
			myleft=20;
			mytop=20;
			settings="width=500,height=500,top=" + mytop + ",left=" + myleft + ",scrollbars=yes,location=no,directories=no,status=no,menubar=no,toolbar=no,resizable=yes,dependent=no";
			win=window.open("mailform.php","contactform",settings);
			win.focus();
}