function btn(id){
					// link pasif
				
					document.getElementById("1").className="";
					document.getElementById("2").className="";
					document.getElementById("3").className="";
					document.getElementById("4").className="";
					document.getElementById("5").className="";
					document.getElementById("6").className="";
					document.getElementById("7").className="";
					document.getElementById("8").className="";
					document.getElementById("9").className="";
					document.getElementById("10").className="";
					document.getElementById("11").className="";
					document.getElementById("12").className="";
					document.getElementById("13").className="";
					document.getElementById("14").className="";
					document.getElementById("15").className="";
					document.getElementById("16").className="";
					document.getElementById("17").className="";
				
				
				document.getElementById("h3_2").className="head";
				document.getElementById("h3_3").className="head";
				document.getElementById("h3_4").className="head";
				document.getElementById("h3_5").className="head";
				
					if(id==1){
						document.getElementById("1").className="selected_10";
					}
					else if(id==2){
						document.getElementById("2").className="selected_10";
						document.getElementById("h3_2").className="selected2";
					}
					else if(id==3){
						document.getElementById("3").className="selected_10";
					}
					else if(id==4){
						document.getElementById("4").className="selected_10";
					}
					else if(id==5){
						document.getElementById("5").className="selected_10";
					}
					else if(id==6){
						document.getElementById("6").className="selected_10";
					}
					
								if(id==7){
						document.getElementById("7").className="selected_10";
					}
					else if(id==8){
						document.getElementById("8").className="selected_10";
				
					}
					else if(id==9){
						document.getElementById("9").className="selected_10";
						document.getElementById("h3_3").className="selected3";
					}
					else if(id==10){
						document.getElementById("10").className="selected_10";
						document.getElementById("h3_4").className="selected4";
					}
					else if(id==11){
						document.getElementById("11").className="selected_10";
						document.getElementById("h3_5").className="selected5";
					}
					else if(id==12){
						document.getElementById("12").className="selected_10";
					}
					
								if(id==13){
						document.getElementById("13").className="selected_10";
					}
					else if(id==14){
						document.getElementById("14").className="selected_10";
					}
					else if(id==15){
						document.getElementById("15").className="selected_10";
					}
					
						else if(id==16){
						document.getElementById("16").className="selected_10";
					}
					else if(id==17){
						document.getElementById("17").className="selected_10";
					}
	}