// JavaScript Document
function showLAYER(layName){                                    
	if(document.getElementById)         //e5,e6,n6,n7,m1,o6,o7,s1用
		document.getElementById(layName).style.visibility='visible'
	else if(document.all)               //e4用
		document.all(layName).style.visibility='visible'
	else if(document.layers)            //n4用
		document.layers[layName].visibility='show'
}
function hideLAYER(layName){
	if(document.getElementById)         //e5,e6,n6,n7,m1,o6,o7,s1用
		document.getElementById(layName).style.visibility='hidden'
	else if(document.all)               //e4用
		document.all(layName).style.visibility='hidden'
	else if(document.layers)            //n4用
		document.layers[layName].visibility='hide'
}