var is_ie = navigator.appName == "Microsoft Internet Explorer";
var is_nav = navigator.appName == "Netscape";
var is_op = navigator.appName == "Opera";

function fetch_object(idname)
{
	if (document.getElementById)
	{
		return document.getElementById(idname);
	}
	else if (document.all)
	{
		return document.all[idname];
	}
	else if (document.layers)
	{
		return document.layers[idname];
	}
	else
	{
		return null;
	}
}