function mout(num){
	for(var id = 1;id<=12;id++) {
        var sundayu3="nav"+id;
        if(id==num)
        document.getElementById(sundayu3).className="nav";
    }
}
	
function navf(num){
    for(var id = 1;id<=12;id++) {
    
    if(num==1) 
    document.getElementById("nav1").className="navr";
	else
	document.getElementById("nav1").className="nav";
    if(num==2)
    document.getElementById("nav2").className="navr";
	else
	document.getElementById("nav2").className="nav";
    if(num==3)
    document.getElementById("nav3").className="navr";
	else
	document.getElementById("nav3").className="nav";
    if(num==4)
    document.getElementById("nav4").className="navr";
	else
	document.getElementById("nav4").className="nav";
	 if(num==5)
    document.getElementById("nav5").className="navr";
	else
	document.getElementById("nav5").className="nav";
	 if(num==6)
    document.getElementById("nav6").className="navr";
	else
	document.getElementById("nav6").className="nav";
	 if(num==7)
    document.getElementById("nav7").className="navr";
	else
	document.getElementById("nav7").className="nav";
	 if(num==8)
    document.getElementById("nav8").className="navr";
	else
	document.getElementById("nav8").className="nav";
	 if(num==9)
    document.getElementById("nav9").className="navr";
	else
	document.getElementById("nav9").className="nav";  
    if(num==10)
    document.getElementById("nav10").className="navr";
	else
	document.getElementById("nav10").className="nav";   
    if(num==11)
    document.getElementById("nav11").className="navr";
	else
	document.getElementById("nav11").className="nav";   
    if(num==12)
    document.getElementById("nav12").className="navr";
	else
	document.getElementById("nav12").className="nav";  
    
	}
}