// JavaScript Document
function show(whichId){
	var targetLayer="drop_"+whichId;
	
	for(var i=0; i<1; i++){
		var layers="drop_"+(i+1);
		
		if (layers==targetLayer){
			document.getElementById(layers).style.visibility="visible";
			document.getElementById("link_"+whichId).className="active";
		}
		else{
			document.getElementById(layers).style.visibility="hidden";
		}
	}
	
}

function hide(whichId){
	document.getElementById("drop_"+whichId).style.visibility="hidden"
	document.getElementById("link_"+whichId).className="";
}