/* div open close */
function toggle(eltId)
{
	var elt = document.getElementById(eltId);
	elt.style.display = (elt.style.display == "block") ? "none" : "block";	
}
/* ---------------------------- */
/* SHOW-HIDE Layer				*/
/* ---------------------------- */
function showlayer(layer)
{
	var myLayer=document.getElementById(layer);
	if(myLayer.style.display=="none" || myLayer.style.display==""){
		myLayer.style.display="block";
	} else { 
		myLayer.style.display="none";
		}
}

function masklayer(layer)
{
	var myLayer=document.getElementById(layer);
	if(myLayer.style.display=="none" || myLayer.style.display=="none"){
		myLayer.style.display="none";
	} else { 
		myLayer.style.display="none";
		}
}

function maskall()
{
	for (i=1; i<=6; i++)
	{
		masklayer('sm_' + i);
	}

}