// JavaScript Document

function go(num){ 
for(var id=1;id<=5;id++) {
var tit="t0"+id;
var titsub="sub_t0"+id; 
if(id==num)
{
	document.getElementById(tit).className="titb";
document.getElementById(titsub).className="sub_content1";
//document.getElementById(titsub).style.display="block";
}
else 
{
document.getElementById(tit).className="tita";
document.getElementById(titsub).className="sub_content2";
//document.getElementById(titsub).style.display="none";
}
} 
}