// Powered by WWW.ICOOC.COM
function opensubmenu(divId,divName,zDivCount) 
{ 
    if(divId>0){
	for(i=1;i<=zDivCount;i++){
	document.getElementById(divName+i).style.display="none"; 
	}
	document.getElementById(divName+divId).style.display="block"; 
	}else{
	document.getElementById("s_1").style.display="none"; 
	document.getElementById("s_2").style.display="none"; 
	}
}