function select(id)
{
    for(var i = 1 ; i <= 6 ; i++)
    {
        if(i%2==1)
        {
            document.getElementById("l"+i).className="l";
        }
        else
        {
            document.getElementById("l"+i).className="r";
        }
        document.getElementById("sc_"+i).className="hide";
    }
    if(id%2==1)
    {

        document.getElementById("l"+id).className="l_h";
        document.getElementById("sc_"+id).className="cont_l";
    }
    else
    {

        document.getElementById("l"+id).className="r_h";
        document.getElementById("sc_"+id).className="cont_r";
    }
    
}