function select4x(i){
switch(i){
case 1:
document.getElementById("bodyA1DIV").style.display="block";
document.getElementById("bodyA1").className="bodyB1";
document.getElementById("bodyA2").className="bodyA2";
document.getElementById("bodyA3").className="bodyA3";
document.getElementById("bodyA4").className="bodyA4";
document.getElementById("bodyA2DIV").style.display="none";
document.getElementById("bodyA3DIV").style.display="none";
document.getElementById("bodyA4DIV").style.display="none";
break;
case 2:
document.getElementById("bodyA2DIV").style.display="block";
document.getElementById("bodyA2").className="bodyB2";
document.getElementById("bodyA1").className="bodyA1";
document.getElementById("bodyA3").className="bodyA3";
document.getElementById("bodyA4").className="bodyA4";
document.getElementById("bodyA1DIV").style.display="none";
document.getElementById("bodyA3DIV").style.display="none";
document.getElementById("bodyA4DIV").style.display="none";
break;
case 3:
document.getElementById("bodyA3DIV").style.display="block";
document.getElementById("bodyA3").className="bodyB3";
document.getElementById("bodyA2").className="bodyA2";
document.getElementById("bodyA1").className="bodyA1";
document.getElementById("bodyA4").className="bodyA4";
document.getElementById("bodyA2DIV").style.display="none";
document.getElementById("bodyA1DIV").style.display="none";
document.getElementById("bodyA4DIV").style.display="none";
break;
case 4:
document.getElementById("bodyA4DIV").style.display="block";
document.getElementById("bodyA4").className="bodyB4";
document.getElementById("bodyA2").className="bodyA2";
document.getElementById("bodyA3").className="bodyA3";
document.getElementById("bodyA1").className="bodyA1";
document.getElementById("bodyA2DIV").style.display="none";
document.getElementById("bodyA3DIV").style.display="none";
document.getElementById("bodyA1DIV").style.display="none";
break
}
}