//레이어 보여주기 숨기기
function show(id) {

	ns = (document.layers)? true:false
	ie = (document.all)? true:false

	if (ns)  document.layers[id].visibility = "show";
	else if (ie) document.all[id].style.visibility = "visible";
}

function hide(id) {

	ns = (document.layers)? true:false
	ie = (document.all)? true:false

	if (ns) document.layers[id].visibility = "hidden";
	else if (ie) document.all[id].style.visibility = "hidden";
}



//tr채로 보여주기 숨기기 (높이 못정하는경우)
		nl2 = (document.all)? true:false

		function show1(id) {
			if (nl2) document.all[id].style.display = 'block'
		}

		function hide1(id) {
			if (nl2) document.all[id].style.display = 'none'
		}