function grayon2(){  
//    this.style.background-color = "silver";
  //  window.alert("12312321");
    //document.getElementById(name).style.background-color = "silver";
}


function grayon(name){  
}

function grayoff(name){
//    document.getElementById(name).style.background-color = "";
//    this.style.background-color = "";
}