function c01a(id){
		  if(id==1){
		    document.getElementById('c01a_1').className="bq01";
		    document.getElementById('c01a_2').className="bq02";
			document.getElementById('c01a_3').className="bq02";
			document.getElementById('c01a_4').className="bq02";
			document.getElementById('c01a_1c').style.display="block";
			document.getElementById('c01a_2c').style.display="none";
            document.getElementById('c01a_3c').style.display="none";
			document.getElementById('c01a_4c').style.display="none";
			}
		  else if(id==2){
		    document.getElementById('c01a_1').className="bq02";
		    document.getElementById('c01a_2').className="bq01";
			document.getElementById('c01a_3').className="bq02";
			document.getElementById('c01a_4').className="bq02";
			document.getElementById('c01a_1c').style.display="none";
			document.getElementById('c01a_2c').style.display="block";
            document.getElementById('c01a_3c').style.display="none";
			document.getElementById('c01a_4c').style.display="none";
		  }
		  else if(id==3){
		    document.getElementById('c01a_1').className="bq02";
		    document.getElementById('c01a_2').className="bq02";
			document.getElementById('c01a_3').className="bq01";
			document.getElementById('c01a_4').className="bq02";
			document.getElementById('c01a_1c').style.display="none";
			document.getElementById('c01a_2c').style.display="none";
            document.getElementById('c01a_3c').style.display="block";
			document.getElementById('c01a_4c').style.display="none";
		  }
		  else if(id==4){
		    document.getElementById('c01a_1').className="bq02";
		    document.getElementById('c01a_2').className="bq02";
			document.getElementById('c01a_3').className="bq02";
			document.getElementById('c01a_4').className="bq01";
			document.getElementById('c01a_1c').style.display="none";
			document.getElementById('c01a_2c').style.display="none";
            document.getElementById('c01a_3c').style.display="none";
			document.getElementById('c01a_4c').style.display="block";
		  }
		  }



		function book(id){
		if(id==1){
		document.getElementById('book_1').className="bg01";
		document.getElementById('book_2').className="bg02";
		document.getElementById('book_3').className="bg02";
		document.getElementById('book_4').className="bg02";
		document.getElementById('book_1c').style.display="block";
		document.getElementById('book_2c').style.display="none";
		document.getElementById('book_3c').style.display="none";
		document.getElementById('book_4c').style.display="none";
		}
		else if(id==2){
		document.getElementById('book_1').className="bg02";
		document.getElementById('book_2').className="bg01";
		document.getElementById('book_3').className="bg02";
		document.getElementById('book_4').className="bg02";
		document.getElementById('book_1c').style.display="none";
		document.getElementById('book_2c').style.display="block";
		document.getElementById('book_3c').style.display="none";
		document.getElementById('book_4c').style.display="none";
		}
		else if(id==3){
		document.getElementById('book_1').className="bg02";
		document.getElementById('book_2').className="bg02";
		document.getElementById('book_3').className="bg01";
		document.getElementById('book_4').className="bg02";
		document.getElementById('book_1c').style.display="none";
		document.getElementById('book_2c').style.display="none";
		document.getElementById('book_3c').style.display="block";
		document.getElementById('book_4c').style.display="none";
		}
		else if(id==4){
		document.getElementById('book_1').className="bg02";
		document.getElementById('book_2').className="bg02";
		document.getElementById('book_3').className="bg02";
		document.getElementById('book_4').className="bg01";
		document.getElementById('book_1c').style.display="none";
		document.getElementById('book_2c').style.display="none";
		document.getElementById('book_3c').style.display="none";
		document.getElementById('book_4c').style.display="block";
		}
		}

		  function npx(id){
		  if(id==1){
		    document.getElementById('npx_1').className="bq01";
		    document.getElementById('npx_2').className="bq02";
			document.getElementById('npx_1c').style.display="block";
			document.getElementById('npx_2c').style.display="none";
			}
		  else if(id==2){
		    document.getElementById('npx_1').className="bq02";
		    document.getElementById('npx_2').className="bq01";
		  }
		  }