// JavaScript Document
//SN
h1=1;
h2=1;
h3=1;
function dblock(id)
{

if(id==1)
	{
	if(h1==1){document.getElementById("sn_n1").style.display='block';h1=0;}
	else{document.getElementById("sn_n1").style.display='none';h1=1;}
	}

if(id==2)
	{
	if(h2==1){document.getElementById("sn_n2").style.display='block';h2=0;}
	else{document.getElementById("sn_n2").style.display='none';h2=1;}
	}
	
if(id==3)
	{
	if(h3==1){document.getElementById("sn_n3").style.display='block';h3=0;}
	else{document.getElementById("sn_n3").style.display='none';h3=1;}
	}
}