function user_action(user_action)
{
	form = document.getElementById('main_form');
	if(form.action.indexOf('?') != -1)
	{
		form.action = form.action+'&user_action='+user_action;
	}
	else
	{
		form.action = form.action+'?user_action='+user_action;
	}
	form.submit();
}

function browser(br_name)
{
	return (navigator.userAgent.toLowerCase().indexOf(br_name) + 1);
}
function zoom_more(flash_game)
{
	obj = document.getElementById(flash_game);
	if (!browser("msie")) {
		alert("La Herramienta del Zoom solo funciona en Internet explorer");
		return;
	}
	obj.width *= 1.1;
	obj.height *= 1.1;
}
function zoom_less(flash_game)
{
	obj = document.getElementById(flash_game);
	if (!browser("msie")) {
		alert("La Herramienta del Zoom solo funciona en Internet explorer");
		return;
	}
	obj.width *= 0.9;
	obj.height *= 0.9;
}