function ChangeDiv(divId,divName,zDivCount) 
{ 
 for(i=0;i<=zDivCount;i++)
 {
     document.getElementById(divName+i).style.display="none"; 
 }
 document.getElementById(divName+divId).style.display="block"; 
} 
function ChangeClass(divId,divName,zDivCount,n){
	ChangeDiv(divId,divName,zDivCount);
	
	var a=(n+1)%2;
	
	document.getElementById("td"+n).className="now";
	document.getElementById("td"+a).className="no";
}

function ChangeGB(divId,divName,zDivCount,n){
	ChangeDiv(divId,divName,zDivCount);
	
	var a=(n+1)%2;
	document.getElementById("t"+n).className="now";
	document.getElementById("t"+a).className="no";
}