function Package1(g1)
{
    for(i=1;i<=4;i++)
    {
        if(i==g1)
        {
            document.getElementById("package_"+i).style.display="";
            document.getElementById("packages_"+i).className="aa1";

        }
        else
        {
            document.getElementById("package_"+i).style.display="none";
            document.getElementById("packages_"+i).className="aa2";

        }
    }
}