numLayer = "";

function Opencostume(myNav)
{
	if(numLayer.lastIndexOf(myNav) < 0)
	{
	numLayer += myNav;
	document.getElementById("costume-"+myNav).style.visibility="hidden";
	document.getElementById("costume-"+myNav).style.display="none";
	}
	else
	{
	indexA=numLayer.lastIndexOf(myNav);
	indexB=eval(indexA+5);
	indexC=numLayer.length;
	numLayer=(numLayer.substring(0, indexA)+numLayer.substring(indexB, indexC));
	document.getElementById("costume-"+myNav).style.visibility="visible";
	document.getElementById("costume-"+myNav).style.display="block";
	}
}