bro_sn();

function ChgCtn(id, str) {
	if (bro=='IE') {
		document.all[id].innerHTML = str;
	}
	if (bro=='NN') { 
		document.layers[id].document.open();
		document.layers[id].document.write(str);
		document.layers[id].document.close();
	}
	if (bro=='MO' || bro=='OP') {
		document.getElementById(id).innerHTML = str;
	}
}

function SHLayer(id){
	
	eval("document.getElementById('" + id + "').style.display='none'");	

	if (bro=='IE') eval("document.all." + id + ".style.visibility='hidden'");
	if (bro=='NN') eval("document." + id + ".visibility='hidden");
	if (bro=='MO' || bro=='OP') eval("document.getElementById('" + id + "').style.visibility='hidden'");
}

function SWLayer(id){
	
	eval("document.getElementById('" + id + "').style.display='block'");	

	if (bro=='IE') eval("document.all." + id + ".style.visibility='visible'");
	if (bro=='NN') eval("document." + id + ".visibility='visible");
	if (bro=='MO' || bro=='OP') eval("document.getElementById('" + id + "').style.visibility='visible'");
}