function toggle(id,p){ 

	var myChild = document.getElementById(id);

	if(myChild.style.display!='block'){

		myChild.style.display='block';
		if(id!='N0_1'){
		document.getElementById("N0_1").style.display='none';
		document.getElementById("P01").className='folder';
		}
		if(id!='N0_2'){		
		document.getElementById("N0_2").style.display='none';		
		document.getElementById("P02").className='folder';		
		}
		if(id!='N0_3'){		
		document.getElementById("N0_3").style.display='none';
		document.getElementById("P03").className='folder';		
		}
//		if(id!='N0_4'){		
//		document.getElementById("N0_4").style.display='none';		
//		document.getElementById("P04").className='folder';		
//		}
		document.getElementById(p).className='folderOpen';
	}else{

		myChild.style.display='none';

		document.getElementById(p).className='folder';

	}

}