// JavaScript Document

function showlayer(str) {
	var target;
	if (document.getElementById) {
		target=document.getElementById(str);
		if (target.style.display=="") {
			target.style.display="none";
		}
		else {
			target.style.display="";
		}
	}
}

function hideall(str) {
	var target;
	var i;
	i=0;
	if (document.getElementById) {
		for (i=0;i<str.length;i++) {
			target=document.getElementById(str.substr(i, 1));
			if (target.style.display=="") {
				target.style.display="none";
			}
		}
	}
}