var n4, ie, n6;
var doc,doc2,doc3,sty;

if (document.layers) {
	doc = "document.";
	doc2 = ".document.";
	doc3 = "";
	sty = "";
	n4 = true;
} else if (document.all) {
	doc = "document.all.";
	doc2 = "";
	doc3 = "";
	sty = ".style";
	ie = true;
} else if (document.getElementById) {
	doc = "document.getElementById('";
	doc2 ="')";
	doc3 ="')";
	sty = "').style";
	n6 = true;
}

function blocknone(divname, state) {
	if (n4) {
		divObj = eval (doc + divname);
	}
	else {
		divObj = eval (doc + divname + sty);
	}
	divObj.display = state;
}
function show(divname, active) {
	active_div = active.parentNode.parentNode.id;
	blocknone(active_div, 'none');
	blocknone(divname,'block');

}
function init(initdivname) {
	blocknone(initdivname, 'block');
}